Bro or guy (4)
I believe the answer is:
dude
I believe this clue is a double definition.
'bro' is the first definition.
(I've seen this in another clue)
'guy' is the second definition.
(both can informally mean a man)
(Other definitions for dude that I've seen before include "Man (US colloq.)" , "Stylish man (US)" , "Stylish chap" , "A (dandy) American city dweller" , "An American dandy out west" .)