Soprano in Italian city runs over artist (8)
I believe the answer is:
pissarro
'artist' is the definition.
(I've seen this before)
'soprano in italian city runs over' is the wordplay.
'soprano' becomes 's' (musical abbreviation).
'in' is an insertion indicator.
'italian city' becomes 'pisa' (I've seen this before).
'runs over' becomes 'rro' (I can't explain this - if you can you should give a lot more credence to this answer).
's' going into 'pisa' is 'pissa'.
'pissa'+'rro'='PISSARRO'
(Other definitions for pissarro that I've seen before include "Camille --, French painter" , "Camile, Danish-French impressionist painter, d.1903" , "Camille --, French artist" .)