Wrongly label or title male (7)
I believe the answer is:
misterm
'wrongly label or' is the definition.
I can't judge whether this definition defines the answer.
'title male' is the wordplay.
'title' becomes 'mister'.
'male' becomes 'm' (common abbreviation).
'mister'+'m'='MISTERM'
Can you help me to learn more?
(Other definitions for misterm that I've seen before include "Give wrong name" , "name in an inappropriate way" .)