Good man, he could be a sport (6)
I believe the answer is:
pastor
'good man he' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'could be a sport' is the wordplay.
'could be' indicates anagramming the letters.
'a'+'sport'='asport'
'asport' with letters rearranged gives 'PASTOR'.
Can you help me to learn more?
(Other definitions for pastor that I've seen before include "Flock's leader" , "Christian minister" , "One with a flock (of people)" , "Minister; shepherd" , "who may provide a service" .)