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All answers having "Repressed" as clue:

4 Character Answers:

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PENT

TROD



5 Character Answers:

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TAMED



6 Character Answers:

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HELDIN

KEPTIN

PENTUP

TINSEL



7 Character Answers:

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MUFFLED



8 Character Answers:

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SILENCED



9 Character Answers:

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INHIBITED