Racket on its fourth shot at Wimbledon (4)
I believe the answer is:
dink
'racket on its fourth shot at wimbledon' is the definition.
I can't tell whether this defines the answer.
'racket on its' is the wordplay.
'racket' becomes 'din' (I've seen this before).
'on' is a charade indicator (letters next to each other).
'its' becomes 'k' (I am not sure about this - if you are sure you should believe this answer much more).
'din'+'k'='DINK'
Can you help me to learn more?
(Other definitions for dink that I've seen before include "Delicate shot" , "Drop shot" .)