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All answers having "___ hail!" as clue:

3 Character Answers:

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ALL

AVE

LOO



4 Character Answers:

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ACAB

AHOY

CALL

LAUD



5 Character Answers:

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EXALT

EXTOL

GREET



6 Character Answers:

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SALUTE



7 Character Answers:

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ACCLAIM



8 Character Answers:

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FLAGDOWN



10 Character Answers:

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ICEPELLETS



15 Character Answers:

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PLACEFORSINNERS

THEGANGSALLHERE