Might one possibly parley with the ref? (6)
I believe the answer is:
player
'the ref?' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe there's an association between them I don't understand?
'might one possibly parley' is the wordplay.
'parley' can be anagrammed to 'PLAYER'.
But, I'm not sure how the anagram is indicated.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for player that I've seen before include "Competitor; musician" , "Partaker in game" , "Sports team member" , "Gamer or sportsman" , "Game's participant" .)