Bottled extract of turpentine (4)

I believe the answer is:

pent

'bottled' is the definition.
(I've seen this in another clue)

'extract of turpentine' is the wordplay.
'extract of' indicates a hidden word (I've seen this in other clues).
'PENT' can be found hidden inside 'turpentine'.

(Other definitions for pent that I've seen before include "enclosed" , "Closely confined" .)

I've seen this clue in the Evening Standard.

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