Dish motorist did not start cooking (7)
I believe the answer is:
risotto
'dish' is the definition.
(risotto is a kind of dish)
'motorist did not start cooking' is the wordplay.
'did not start' means to remove the first letter.
'cooking' indicates an anagram.
'motorist' with its first letter taken off is 'otorist'.
'otorist' anagrammed gives 'RISOTTO'.
(Other definitions for risotto that I've seen before include "dishy thing!" , "Rice/stock dish" , "You cook it in stock" , "scoff" , "Italian dish of rice, meat and vegetables" .)