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All answers having "Emit" as clue:

4 Character Answers:

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ITEM

SHED

SPEW



5 Character Answers:

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BELCH

EJECT

EXUDE

HEAVE

ISSUE



6 Character Answers:

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EXHALE

LETOUT



7 Character Answers:

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GIVEOFF

GIVEOUT

RADIATE

SENDOUT



12 Character Answers:

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TURNBACKTIME