Exaggerated masculinity (8)
I believe the answer is:
machismo
'exaggerated masculinity' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for machismo that I've seen before include "Expression of male pride" , "Aggressive masculine pride" , "large injection of testosterone!" , "Exaggerated sense of manliness" , "aggressive masculinity" .)