Overripe herb on the game (9)
I believe the answer is:
badminton
'game' is the definition.
(badminton is a kind of game)
'overripe herb on' is the wordplay.
'overripe' becomes 'bad' (I can't explain this - if you can you should believe this answer much more).
'herb' becomes 'mint' (mint is a kind of herb).
'bad'+'mint'+'on'='BADMINTON'
'the' acts as a link.
Can you help me to learn more?
(Other definitions for badminton that I've seen before include "Racket game with shuttlecock" , "Racquet sport" , "in which rackets are involved" , "Game played with rackets" , "A sport; Beaufort seat" .)