Polished table leg -- antique, to an extent (7)

I believe the answer is:

elegant

'polished' is the definition.
(thesaurus)

'table leg antique to an extent' is the wordplay.
'to an extent' indicates a hidden word.
'ELEGANT' is hidden within 'table leg antique'.

(Other definitions for elegant that I've seen before include "Chic; smart" , "Debonair, stylishly dressed" , "A gentle way to be stylish" , "Neat leg? (anag)" , "Gracefully stylish" .)

I've seen this clue in The Telegraph.

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