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All answers having "Holds up" as clue:

3 Character Answers:

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RHO



4 Character Answers:

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LAGS

ROBS



5 Character Answers:

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BEARS

BUOYS

HALTS

LASTS

SLOWS

STAYS

STOPS



6 Character Answers:

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DELAYS

RAISES



7 Character Answers:

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DANGLES

STYMIES



8 Character Answers:

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SUSTAINS