Go off most unattached female misses (5)

I believe the answer is:

reest

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'go' is the definition.
Both the definition and answer are verbs in their base form.
Perhaps you can see a link between them that I can't see?

I can't explain the rest of the clue.

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(Other definitions for reest that I've seen before include "In Scotland, fit" , "Cure for Scot" .)

I've seen this clue in The Times and The Sunday Times.

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