He may make a score or interpret one (6)
I believe the answer is:
player
'he may make a score or interpret one' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'he may make a' is the wordplay.
I cannot quite understand how this works, but
'he' could be 'lay' and 'lay' is present in the answer.
'a' could be 'per' (eg 'one a day' means 'one per day') and 'per' is located in the remaining letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for player that I've seen before include "Competitor; musician" , "film, on piano" , "Actor; sportsman" , "powerful participant" , "Performer" .)