He's wrong where a female's concerned (3)
I believe the answer is:
she
'where a female's concerned' is the definition.
The definition suggests a singular noun which matches the answer.
'he's wrong' is the wordplay.
'wrong' indicates an anagram.
'hes' with letters rearranged gives 'SHE'.
Can you help me to learn more?
(Other definitions for she that I've seen before include "Female person" , "Book" , "That woman" , "- - Loves You (Beatles)" , "The one who must be obeyed" .)