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All answers having "Increased" as clue:

4 Character Answers:

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EKED

GREW

ROSE



5 Character Answers:

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ADDED

BUILT

RANUP

RISEN

UPPED

WAXED



6 Character Answers:

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RAISED

WENTUP



7 Character Answers:

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ADDEDTO



8 Character Answers:

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ENHANCED

SPIRALED



9 Character Answers:

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AUGMENTED

GREATENED