Affected dandy (3)
I believe the answer is:
fop
'affected dandy' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for fop that I've seen before include "A dandy, overdressed man" , "Man excessively concerned with his appearance" , "Man excessively concerned with fashion" , "he enjoys the finest dressing" , "Gallant" .)