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All answers having "Unsettle" as clue:

3 Character Answers:

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DYE

JAR



4 Character Answers:

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FAZE

RILE



5 Character Answers:

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EVICT



7 Character Answers:

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AGITATE

DERANGE

DISTURB

PERTURB



10 Character Answers:

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DISCOMPOSE

DISCONCERT