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All answers having "Deficit" as clue:

4 Character Answers:

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LACK

LOSS

SIAM



5 Character Answers:

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DEBIT



6 Character Answers:

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REDINK



8 Character Answers:

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SHORTAGE



9 Character Answers:

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SEMICOLON

SHORTFALL



10 Character Answers:

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BAREFOOTED



12 Character Answers:

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FREESTANDING