Steady fella (4)
I believe the answer is:
beau
'steady fella' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for beau that I've seen before include "Lover boy" , "An old-fashioned boy friend (4)" , "Dandy - boyfriend" , "Male admirer; dandy" , "Admirer; fop, dandy" .)