Make fun of man (3)
I believe the answer is:
guy
This clue is a double definition.
'make fun of' is the first definition.
('guy' can be a synonym of 'make fun of')
'man' is the second definition.
(I've seen this before)
(Other definitions for guy that I've seen before include "Rope; man" , "Stay - ridicule - chap" , "Male" , "send up?" , "One burned on Nov. fifth" .)