Male rage — it’s dirty (4)
I believe the answer is:
mire
'dirty' is the definition.
(miring is a kind of dirtying)
'male rage' is the wordplay.
'male' becomes 'm' (common abbreviation).
'rage' becomes 'ire' (ire is intense rage).
'm'+'ire'='MIRE'
'it's' acts as a link.
(Other definitions for mire that I've seen before include "(Stretch of) clinging mud" , "Swampy ground" , "Bog - muck" , "Stretch of boggy ground" , "Emir found in mud" .)