Dapper fellow (3)
I believe the answer is:
dan
'dapper fellow?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for dan that I've seen before include "Expertise level in juso" , "-- Dare, comic hero" , "Tribe" , "Proficient combative sportsman" , "A Desperate cartoon character" .)