Fine radio exposure for song getting just treatment (4,4)
I believe the answer is:
fair play
'just treatment' is the definition.
(fair or ethical treatment)
'fine radio exposure for song getting' is the wordplay.
'fine' becomes 'fair' (I've seen this before).
'radio exposure for song' becomes 'play' (as in a play of a song by a DJ).
'getting' says to put letters next to each other.
'fair'+'play'='FAIR PLAY'
(Other definitions for fair play that I've seen before include "Just treatment of others" , "respect for the rules" , "Even-handedness" , "All credit to you" , "Justice" .)