Send watch to be wound back (5)

I believe the answer is:

remit

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'send' is the definition.
(I've seen this before)

I can't explain the remainder of the clue.

(Other definitions for remit that I've seen before include "Brief - transfer" , "Send - scope of one's duties" , "Abate; send (money)" , "Pay for timer" , "Maybe suspend" .)

I've seen this clue in The Telegraph.

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