Popular work in art gallery in recycled clay? Not exactly (12)

I believe the answer is:

inaccurately

'not exactly' is the definition.
(inexactly)

'popular work in art gallery in recycled clay?' is the wordplay.
'popular' becomes 'in' ('in' can mean trendy).
'work in art gallery' becomes 'curate' (work as a curator).
'in' is an insertion indicator.
'recycled' is an anagram indicator.
'clay' anagrammed gives 'acly'.
'curate' inserted into 'acly' is 'accurately'.
'in'+'accurately'='INACCURATELY'

(Another definition for inaccurately that I've seen is " Wrong".)

I've seen this clue in The Times.

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