A gong that may merely jingle a bit (5)
I believe the answer is:
medal
'a gong' is the definition.
(gong can mean a prize or medal)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for medal that I've seen before include "Prize; sounds like interfere" , "Metal disc awarded as prize, say in Olympics" , "Small metal disc as reward or prize" , "Award for distinction" , "Winner's award" .)