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All answers having "Peevish" as clue:

4 Character Answers:

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EDGY

SORE

SOUR



5 Character Answers:

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AFRET

CROSS

POUTY

SULKY

TESTY

WRIST



6 Character Answers:

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CRABBY

CRANKY

GRUMPY

INAPET

IREFUL

NATION

SNARLY

SNIPPY

TETCHY



7 Character Answers:

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CRABBED

FRETFUL

INASNIT

SPLEENY



8 Character Answers:

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PETULANT

SCRATCHY



9 Character Answers:

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IRRITABLE

IRRITATED

QUERULOUS

SPLENETIC



10 Character Answers:

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ILLNATURED