Cleans cricket trophy after win (6)
I believe the answer is:
washes
'cleans' is the definition.
(washing is a kind of cleaning)
'cricket trophy after win' is the wordplay.
'cricket trophy' becomes 'ashes' (I've seen this before).
'after' means one lot of letters go next to another.
'win' becomes 'w' (abbreviation in sport).
'ashes' put after 'w' is 'WASHES'.
(Other definitions for washes that I've seen before include "Launders" , "Cleans with liquid" .)