Fine work affected dandy (3)
I believe the answer is:
fop
'affected dandy' is the definition.
(I've seen this before)
'fine work' is the wordplay.
'fine' becomes 'f' (abbreviation).
'work' becomes 'op' (abbreviation for opus).
'f'+'op'='FOP'
(Other definitions for fop that I've seen before include "exquisite" , "Gallant" , "A dandy like Beau Brummel" , "fashionable type" , "'Dandy, coxcomb (3)'" .)