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All answers having "Regards" as clue:

4 Character Answers:

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EYES

SEES



5 Character Answers:

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DEEMS

GAZES

HEEDS



7 Character Answers:

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BEHOLDS

ESTEEMS



8 Character Answers:

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STARESAT



9 Character Answers:

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APPLIESTO



10 Character Answers:

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SETSEYESON