Amateurish player stuffing ex-Wimbledon champion Serena, initially brazen (9)
I believe the answer is:
shameless
'brazen' is the definition.
(I've seen this in another clue)
'amateurish player stuffing ex-wimbledon champion serena initially' is the wordplay.
I cannot quite see how this works, but
'player' could be 'ham' (ham is a kind of player) and 'ham' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for shameless that I've seen before include "Barefaced, unabashed" , "Brazenly showing no regret" , "Quite brazen" , "Immodest; brazen" .)