Setter and young boy return to get gong! (5)
I believe the answer is:
medal
'gong' is the definition.
(I've seen this before)
'setter and young boy return' is the wordplay.
'setter' becomes 'me' (the setter of the clue).
'and' is a charade indicator (letters next to each other).
'young boy' becomes 'lad' (I've seen this before).
'return' is a reversal indicator.
'lad' back-to-front is 'dal'.
'me'+'dal'='MEDAL'
'to get' acts as a link.
(Other definitions for medal that I've seen before include "(Military) decoration" , "Commemorative piece of metal" , "Commemorative disc" , "Religious or commemorative pin" , "Prize; sounds like interfere" .)