Prize wine shattered when shared out (7)
I believe the answer is:
rosette
'prize' is the definition.
(I've seen this before)
'wine shattered when shared out' is the wordplay.
I cannot really understand how this works, but
'wine' could be 'rose' (rose wine is a kind of wine) and 'rose' is found within the answer.
'when' could be 'e' (I've seen this in other clues) and 'e' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for rosette that I've seen before include "Ribbon prize or badge" , "Prizewinner's decoration" , "sign of a champion?" , "Recognition of prize" , "Decoration made of ribbons" .)