PAGE  1
000 B000000 10/31/2007
000 C000000 0001219120
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 ADVENT CLAYMORE CONVERTIBLE SECURITIES
001 B000000 811-21309
001 C000000 2124821600
002 A000000 1065 AVENUE OF THE AMERICAS, 31ST FLOOR
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10018
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 N
007 B000000  0
007 C010100  1
007 C010200  2
007 C010300  3
007 C010400  4
007 C010500  5
007 C010600  6
007 C010700  7
007 C010800  8
007 C010900  9
007 C011000 10
008 A000001 ADVENT CAPITAL MANAGEMENT, LLC
008 B000001 A
008 C000001 801-000
008 D010001 NEW YORK
008 D020001 NY
008 D030001 10018
010 A000001 THE BANK OF NEW YORK
010 B000001 801-000000
010 C010001 NEW YORK
010 C020001 NY
010 C030001 10286
011 A000001 MERRILL LYNCH,PIERCE,FENNER & SMITH INC.
011 B000001 8-00000000
011 C010001 NEW YORK
011 C020001 NY
011 C030001 10080
012 A000001 THE BANK OF NEW YORK
012 B000001 84-0000000
012 C010001 NEW YORK
      PAGE  2
012 C020001 NY
012 C030001 10286
013 A000001 PRICEWATERHOUSECOOPERS LLP
013 B010001 NEW YORK
013 B020001 NY
013 B030001 10036
015 A000001 THE BANK OF NEW YORK
015 B000001 C
015 C010001 NEW YORK
015 C020001 NY
015 C030001 10286
015 E010001 X
015 A000002 BHF-BANK
015 B000002 S
015 C010002 FRANKFURT
015 D010002 GERMANY
015 E040002 X
015 A000003 HONGKONG AND SHANGHAI BANKING CORP.
015 B000003 S
015 C010003 HONG KONG
015 D010003 HONG KONG
015 E040003 X
015 A000004 BANK OF TOKYO-MITSUBISHI UFJ LTD.
015 B000004 S
015 C010004 TOKYO
015 D010004 JAPAN
015 E040004 X
015 A000005 BANQUE ET CAISSE D'EPARGNE DE L'ETAT
015 B000005 S
015 C010005 LUXEMBOURG
015 D010005 LUXEMBOURG
015 E040005 X
015 A000006 DNB NOR BANK ASA
015 B000006 S
015 C010006 OSLO
015 D010006 NORWAY
015 E040006 X
015 A000007 THE BANK OF NEW YORK
015 B000007 S
015 C010007 LONDON
015 D010007 UNITED KINGDOM
015 E040007 X
015 A000009 ROYAL BANK OF CANADA
015 B000009 S
015 C010009 TORONTO
015 D010009 CANADA
015 E040009 X
018  000000 Y
019 A000000 N
019 B000000    0
020 A000001 GOLDMAN SACHS & CO.
      PAGE  3
020 B000001 13-5108880
020 C000001     34
020 A000002 LAZARD FRERES & CO., LLC
020 B000002 13-5545100
020 C000002     34
020 A000003 WACHOVIA SECURITIES, LLC
020 B000003 34-1542819
020 C000003     27
020 A000004 CIBC WORLD MARKETS CORP.
020 B000004 13-2798343
020 C000004     24
020 A000005 LEHMAN BROTHERS HOLDINGS, INC.
020 B000005 13-3216325
020 C000005     15
020 A000006 MORGAN STANLEY
020 B000006 36-3145972
020 C000006     15
020 A000007 UBS SECURITIES LLC
020 B000007 13-3873456
020 C000007     13
020 A000008 CITIGROUP GLOBAL MARKETS HOLDINGS, INC.
020 B000008 11-2418067
020 C000008     13
020 A000009 CREDIT SUISSE FIRST BOSTON, INC.
020 B000009 13-2853402
020 C000009     13
020 A000010 DEUTSCHE BANK SECURITIES,INC.
020 B000010 13-2730828
020 C000010     12
021  000000      218
022 A000001 GOLDMAN SACHS & CO.
022 B000001 13-5108880
022 C000001    526765
022 D000001    551075
022 A000002 LEHMAN BROTHERS HOLDINGS, INC.
022 B000002 13-3216325
022 C000002    105102
022 D000002     80996
022 A000003 CITIGROUP GLOBAL MARKETS HOLDINGS, INC.
022 B000003 11-2418067
022 C000003     65373
022 D000003     46382
022 A000004 DEUTSCHE BANK SECURITIES, INC.
022 B000004 13-2730828
022 C000004     45136
022 D000004     41892
022 A000005 MERRILL LYNCH & CO., INC.
022 B000005 13-2740599
022 C000005     47688
022 D000005     32856
022 A000006 MELLON FINANCIAL CORP.
      PAGE  4
022 B000006 25-1233834
022 C000006     40000
022 D000006     40000
022 A000007 UBS SECURITIES LLC
022 B000007 13-3873456
022 C000007     37766
022 D000007     30310
022 A000008 BANK OF AMERICA CORP.
022 B000008 56-0906609
022 C000008     43487
022 D000008     23301
022 A000009 WACHOVIA SECURITIES, LLC
022 B000009 34-1542819
022 C000009     41441
022 D000009      6108
022 A000010 MORGAN STANLEY
022 B000010 36-3145972
022 C000010     21615
022 D000010     24603
023 C000000    1104700
023 D000000     959747
024  000000 Y
025 A000001 XL CAPITAL LTD.
025 B000001 N/A
025 C000001 E
025 D000001   25450
025 A000002 FORTIS INSURANCE NV
025 B000002 N/A
025 C000002 E
025 D000002   22941
025 A000003 CITIGROUP FUNDING, INC.
025 B000003 N/A
025 C000003 E
025 D000003   18914
025 A000004 AFFILATED MANAGERS GROUP, INC.
025 B000004 N/A
025 C000004 E
025 D000004   17994
025 A000005 METLIFE, INC.
025 B000005 N/A
025 C000005 E
025 D000005   14648
025 A000006 VALE CAPITAL,LTD.
025 B000006 N/A
025 C000006 E
025 D000006   14644
025 A000007 IPC HOLDINGS, LTD.
025 B000007 N/A
025 C000007 E
025 D000007   11173
025 A000008 WACHOVIA BANK NA
      PAGE  5
025 B000008 N/A
025 C000008 E
025 D000008   10891
025 A000009 U.S. BANCORP
025 B000009 N/A
025 C000009 D
025 D000009    9952
025 A000010 COMPUCREDIT CORP.
025 B000010 58-2336669
025 C000010 D
025 D000010    7413
025 A000011 PRIVATE BANCORP, INC.
025 B000011 N/A
025 C000011 D
025 D000011    6676
025 A000012 LEHMAN BROTHERS HOLDINGS, INC.
025 B000012 13-3216325
025 C000012 E
025 D000012    5366
025 A000013 PRUDENTIAL FINANCIAL, INC.
025 B000013 22-3703799
025 C000013 D
025 D000013    5139
025 A000014 REINSURANCE GROUP OF AMERICA, INC.
025 B000014 43-1627032
025 C000014 E
025 D000014    5093
025 A000015 ALLEGHANY CORP.
025 B000015 51-0283071
025 C000015 E
025 D000015    4326
025 A000016 AES TRUST VII
025 B000016 N/A
025 C000016 E
025 D000016    4175
025 A000017 CIT GROUP, INC.
025 B000017 65-1051192
025 C000017 E
025 D000017    3521
025 A000018 RAINBOW NATIONAL SERVICES LLC
025 B000018 N/A
025 C000018 D
025 D000018    3135
025 A000019 ALAMOSA DELAWARE, INC.
025 B000019 N/A
025 C000019 D
025 D000019    3123
025 A000020 AMG CAPITAL TRUST II
025 B000020 N/A
025 C000020 E
025 D000020    2926
      PAGE  6
025 A000021 ASPEN INSURANCE HOLDINGS, LTD.
025 B000021 N/A
025 C000021 E
025 D000021    2763
025 D000022       0
025 D000023       0
025 D000024       0
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027  000000 N
028 A010000         0
028 A020000         0
028 A030000         0
028 A040000         0
028 B010000         0
028 B020000         0
028 B030000         0
028 B040000         0
028 C010000         0
028 C020000         0
028 C030000         0
028 C040000         0
028 D010000         0
028 D020000         0
028 D030000         0
028 D040000         0
028 E010000         0
028 E020000         0
028 E030000         0
028 E040000         0
028 F010000         0
028 F020000         0
028 F030000         0
028 F040000         0
028 G010000         0
028 G020000         0
028 G030000         0
028 G040000         0
028 H000000         0
030 A000000      0
030 B000000  0.00
030 C000000  0.00
031 A000000      0
031 B000000      0
      PAGE  7
032  000000      0
033  000000      0
035  000000      0
036 B000000      0
038  000000      0
042 A000000   0
042 B000000   0
042 C000000   0
042 D000000   0
042 E000000   0
042 F000000   0
042 G000000   0
042 H000000   0
043  000000      0
044  000000      0
045  000000 Y
046  000000 N
047  000000 Y
048  000000  0.540
048 A010000        0
048 A020000 0.000
048 B010000        0
048 B020000 0.000
048 C010000        0
048 C020000 0.000
048 D010000        0
048 D020000 0.000
048 E010000        0
048 E020000 0.000
048 F010000        0
048 F020000 0.000
048 G010000        0
048 G020000 0.000
048 H010000        0
048 H020000 0.000
048 I010000        0
048 I020000 0.000
048 J010000        0
048 J020000 0.000
048 K010000        0
048 K020000 0.000
049  000000 N
050  000000 N
051  000000 N
052  000000 N
053 A000000 Y
053 B000000 Y
053 C000000 N
054 A000000 Y
054 B000000 Y
054 C000000 N
      PAGE  8
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 N
054 H000000 Y
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 N
054 M000000 Y
054 N000000 N
054 O000000 N
055 A000000 Y
055 B000000 N
056  000000 N
057  000000 N
058 A000000 N
059  000000 Y
060 A000000 Y
060 B000000 Y
061  000000     2500
062 A000000 N
062 B000000   0.0
062 C000000   0.0
062 D000000   0.0
062 E000000   0.0
062 F000000   0.0
062 G000000   0.0
062 H000000   0.0
062 I000000   0.0
062 J000000   0.0
062 K000000   0.0
062 L000000   0.0
062 M000000   0.0
062 N000000   0.0
062 O000000   0.0
062 P000000   0.0
062 Q000000   0.0
062 R000000   0.0
063 A000000   0
063 B000000  0.0
066 A000000 Y
066 B000000 N
066 C000000 N
066 D000000 N
066 E000000 Y
066 F000000 N
066 G000000 N
067  000000 N
068 A000000 N
068 B000000 N
      PAGE  9
069  000000 N
070 A010000 Y
070 A020000 N
070 B010000 Y
070 B020000 N
070 C010000 Y
070 C020000 N
070 D010000 Y
070 D020000 N
070 E010000 Y
070 E020000 N
070 F010000 Y
070 F020000 N
070 G010000 Y
070 G020000 N
070 H010000 Y
070 H020000 N
070 I010000 N
070 I020000 N
070 J010000 Y
070 J020000 Y
070 K010000 Y
070 K020000 Y
070 L010000 Y
070 L020000 Y
070 M010000 Y
070 M020000 Y
070 N010000 Y
070 N020000 Y
070 O010000 Y
070 O020000 N
070 P010000 Y
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000    680759
071 B000000    688487
071 C000000    899533
071 D000000   76
072 A000000 12
072 B000000    24744
072 C000000    27284
072 D000000        0
072 E000000      657
072 F000000     4966
072 G000000      147
072 H000000        0
072 I000000     2011
072 J000000      115
      PAGE  10
072 K000000        0
072 L000000      168
072 M000000      136
072 N000000        8
072 O000000        0
072 P000000        0
072 Q000000      162
072 R000000      111
072 S000000      125
072 T000000        0
072 U000000        0
072 V000000        0
072 W000000      865
072 X000000     8814
072 Y000000     1839
072 Z000000    45710
072AA000000    22997
072BB000000        0
072CC010000    39776
072CC020000        0
072DD010000    48854
072DD020000        0
072EE000000    11763
073 A010000   2.0800
073 A020000   0.0000
073 B000000   0.5000
073 C000000   0.0000
074 A000000     8948
074 B000000        0
074 C000000        0
074 D000000   484963
074 E000000   403082
074 F000000    26542
074 G000000        0
074 H000000        0
074 I000000    25319
074 J000000     3921
074 K000000        0
074 L000000     7524
074 M000000       40
074 N000000   960339
074 O000000    19617
074 P000000      435
074 Q000000        0
074 R010000        0
074 R020000        0
074 R030000        0
074 R040000      981
074 S000000   275000
074 T000000   664306
074 U010000    23531
      PAGE  11
074 U020000        0
074 V010000    28.23
074 V020000     0.00
074 W000000   0.0000
074 X000000    29862
074 Y000000   185843
075 A000000        0
075 B000000   919572
076  000000    25.15
077 A000000 Y
077 B000000 Y
077 C000000 Y
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 N
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 N
077 Q020000 N
077 Q030000 N
078  000000 N
080 A000000 ST. PAUL FIRE & MARINE INSURANCE COMPANY
080 C000000     2000
081 A000000 Y
081 B000000   2
082 A000000 Y
082 B000000       25
083 A000000 N
083 B000000        0
084 A000000 N
084 B000000        0
085 A000000 Y
085 B000000 N
086 A010000    141
086 A020000   3827
086 B010000      0
086 B020000      0
086 C010000      0
086 C020000      0
086 D010000      0
086 D020000      0
086 E010000      0
086 E020000      0
      PAGE  12
086 F010000      0
086 F020000      0
087 A010000 COMMON STOCK
087 A020000 00764C109
087 A030000 AVK
088 A000000 N
088 B000000 N
088 C000000 N
088 D000000 Y
SIGNATURE   DONNA MC MANUS
TITLE       VICE PRESIDENT