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All answers having "Layers" as clue:

4 Character Answers:

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DROP

GLOW

HENS



5 Character Answers:

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COATS

PLIES

SLING

TIERS



6 Character Answers:

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SHEETS

STRATA

STRATI



7 Character Answers:

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LAMINAE

TROUNCE



8 Character Answers:

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STRATUMS



11 Character Answers:

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LAMINATIONS

NOTASAUSAGE



13 Character Answers:

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ACCOMMODATION