Male, cunning, shows courage (5)
I believe the answer is:
heart
'courage' is the definition.
(I know that heart is a type of courage)
'male cunning' is the wordplay.
'male' becomes 'he' (he refers to a man).
'cunning' becomes 'art' (I've seen this before).
'he'+'art'='HEART'
'shows' acts as a link.
(Other definitions for heart that I've seen before include "Feeling" , "Vital organ - centre - courage" , "Centre; valour" , "It's in the chest" , "Pumping organ" .)