Spicy dishes converted to sugar (7)
I believe the answer is:
ragouts
'spicy dishes' is the definition.
(ragout is a type of stew)
'converted to sugar' is the wordplay.
'converted' is an anagram indicator.
'to'+'sugar'='tosugar'
'tosugar' with letters rearranged gives 'RAGOUTS'.
(Other definitions for ragouts that I've seen before include "Highly seasoned stews" , "Dishes" , "French stews" .)