Food riots to break out (7)
I believe the answer is:
risotto
'food' is the definition.
(risotto is a kind of food)
'riots to break out' is the wordplay.
'break out' is an anagram indicator.
'riots'+'to'='riotsto'
'riotsto' is an anagram of 'RISOTTO'.
(Other definitions for risotto that I've seen before include "It has roots in Italian rice-based dish" , "dishy thing!" , "Savoury rice dish" , "Italian food" , "Rice/stock dish" .)