Defamed male dealing crookedly (8)
'defamed male' is the definition.
'maligned' can be an answer for 'defamed' (maligning is a kind of defaming). I'm unsure of the 'male' bit.
'dealing crookedly' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'dealing' is 'aligned' which is located in the answer.
A single letter 'm' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for maligned that I've seen before include "Spoken ill of", "Unjustly slandered", "stigmatised", "Defamed", "Abused".)