Polished section of gate-leg antique (7)
I believe the answer is:
elegant
'polished' is the definition.
(thesaurus)
'section of gate-leg antique' is the wordplay.
'section of' indicates the answer is hidden within the clue.
'ELEGANT' can be found hidden inside 'gate leg antique'.
(Other definitions for elegant that I've seen before include "A gentle sort of stylish appearance" , "Refined and dignified in appearance" , "Chic; smart" , "Gracefully stylish" , "luxurious style?" .)