Reverse ones selection? (6)

I believe the answer is:

unpick

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'reverse' is the definition.
(I know this)

'ones selection?' is the wordplay.
'ones' becomes 'un' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'selection?' becomes 'pick' (synonyms).
'un'+'pick'='UNPICK'

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

I've seen this clue in The Irish News.

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