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All answers having "Jumbled" as clue:

4 Character Answers:

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PIED



5 Character Answers:

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HASHY

MESSY

MIXED



6 Character Answers:

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HASHED

MESSED



7 Character Answers:

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CHAOTIC

GARBLED

INAMESS

MIXEDUP



9 Character Answers:

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MACARONIC

SCRAMBLED



12 Character Answers:

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HUGGERMUGGER



16 Character Answers:

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HIGGLEDYPIGGLEDY