Open around one, content (4)

I believe the answer is:

undo

'open' is the definition.
(eg opening a bottle)

'around one content' is the wordplay.
'content' indicates a hidden word (letters contained within the clue).
'UNDO' can be found hidden inside 'around one'.

(Other definitions for undo that I've seen before include "Remove the wrapping" , "Wreck" , "Free from ties, laces, etc" , "Overturn" , "Ruin or loosen ties" .)

I've seen this clue in The Irish News.

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