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All answers having "Inclines" as clue:

4 Character Answers:

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TIPS



5 Character Answers:

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HILLS

LEANS

LISTS

RAMPS

TENDS

TILTS



6 Character Answers:

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BEVELS

GRADES

SLANTS

SLOPES



7 Character Answers:

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ASCENTS



8 Character Answers:

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DISPOSES