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All answers having "Restrict" as clue:

3 Character Answers:

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BAN

BAR

TIE



4 Character Answers:

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BIND

CURB



5 Character Answers:

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CRAMP

DRESS

HEMIN

LAMIT

LIMIT

STINT

SUEDE



6 Character Answers:

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AROUSE

FETTER

HOGTIE

NARROW

RATION



7 Character Answers:

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CURTAIL

DELIMIT

TIEDOWN

TRAMMEL