Left out - as he deserves to be? (4)
I believe the answer is:
lout
'he deserves to be?' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'left out' is the wordplay.
'left' becomes 'l' (common abbreviation).
'l'+'out'='LOUT'
'as' is the link.
Can you help me to learn more?
(Other definitions for lout that I've seen before include "disrespectful person" , "A noisy, badly-behaved youth" , "Yobbo" , "Awkward and stupid person" , "Lob" .)