Take apart or reverse one’s choice? (6)

I believe the answer is:

unpick

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'take apart or reverse' is the definition.
I can't judge whether this definition defines the answer.

'one's choice?' is the wordplay.
'one' becomes 'un' (northern English dialect form of 'one').
'choice?' becomes 'pick' (synonyms).
'un'+'pick'='UNPICK'

Can you help me to learn more?

(Other definitions for unpick that I've seen before include "Undo (stitches)" , "analyse meticulously" , "subject to close scrutiny" .)

I've seen this clue in The Times.

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