Snappy dresser (3)
I believe the answer is:
fop
'snappy dresser' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for fop that I've seen before include "One affected" , "A man much concerned with his appearance, a dandy" , "Man excessively concerned with fashion" , "A dandy like Beau Brummel" , "Man excessively concerned with his appearance" .)