Made fun of outspoken leader (5)
I believe the answer is:
guyed
'made fun of' is the definition.
('guy' can be a synonym of 'make fun of')
'outspoken leader' is the wordplay.
'outspoken' shows a homophone (sound like) (as the word might be spoken).
'leader' becomes 'guide' (guide is a kind of leader).
'guide' is a homophone of 'GUYED'.
(Other definitions for guyed that I've seen before include "sent up" , "Made fun of - kept in position by ropes" , "Secured with rope" .)