Smart Ken leaves fowl (4)
I believe the answer is:
chic
'smart' is the definition.
(both can mean stylish)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for chic that I've seen before include "Elegant and stylishly fashionable" , "A la mode" , "Stylishly turned out" , "Stylish and elegant - in France" , "Elegantly stylish" .)