French icon being a bit smart... (4)
I believe the answer is:
chic
'smart' is the definition.
(both can mean stylish)
'french icon being a bit' is the wordplay.
'being a bit' says the answer is hidden in the clue (the answer is formed by a bit of the clue).
'CHIC' is hidden within 'french icon'.
(Other definitions for chic that I've seen before include "Smart - elegant - fashionable" , "In vogue" , "Trendy" , "Elegantly stylish" , "Elegant and sophisticated" .)