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All answers having "Time piece?" as clue:

3 Character Answers:

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DAY

ERA



4 Character Answers:

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HOUR

NEWS

TICK



5 Character Answers:

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ESSAY

ISSUE



6 Character Answers:

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DECADE

MINUTE

MOMENT

OCLOCK



7 Character Answers:

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ARTICLE



8 Character Answers:

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HOROLOGE



15 Character Answers:

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MAGAZINEARTICLE



16 Character Answers:

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GRDNAFATHERCLOCK