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All answers having "Sock" as clue:

3 Character Answers:

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BOP

HIT

HOP

LAM



4 Character Answers:

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BASH

HOSE

KNEE

SLUG

SWAT

TUBE

WHAP



5 Character Answers:

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ANKLE

CLOUT



6 Character Answers:

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ANKLET

ARGYLE

WALLOP