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All answers having "Record holder?" as clue:

3 Character Answers:

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CON



4 Character Answers:

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HIFI

IPOD



5 Character Answers:

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ALBUM

EXCON

FELON

LINER

SHELF



6 Character Answers:

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CDCASE

DEEJAY

JACKET

LEDGER

SLEEVE



7 Character Answers:

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ARCHIVE

DOSSIER

RADIODJ

SPINDLE



8 Character Answers:

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CRIMINAL



9 Character Answers:

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REGISTRAR

TURNTABLE



10 Character Answers:

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DISCJOCKEY



11 Character Answers:

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FILECABINET