He has his virtues (8)
I believe the answer is:
cardinal
'his virtues' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'he' is the wordplay.
I cannot really see how this works, but
'he' could be 'car' and 'car' is located in the answer.
This explanation may well be incorrect...
'has' is the link.
Can you help me to learn more?
(Other definitions for cardinal that I've seen before include "papal adviser" , "Prince of the Roman Catholic Church" , "first" , "Most important number" , "Type of number or prelate" .)