Dandyish (7)
I believe the answer is:
foppish
'dandyish' is the definition.
(I know that dandyish can be written as foppish)
This is all the clue.
(Other definitions for foppish that I've seen before include "of the Dandy" , "Wet" , "Dandyish" , "Excessively concerned with fashion and elegance" , "like Beau Brummell" .)