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All answers having "Frozen treat" as clue:

3 Character Answers:

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POP



4 Character Answers:

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CONE

ICEE



6 Character Answers:

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GELATO

ICEPOP

SORBET



7 Character Answers:

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SNOCONE



8 Character Answers:

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ICECREAM

ICELOLLY

POPSICLE



10 Character Answers:

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ITALIANICE



14 Character Answers:

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ORANGEPOPSICLE