Name the gentleman that sent back the dish (7)
I believe the answer is:
risotto
'the dish' is the definition.
(risotto is a kind of dish)
'name the gentleman that sent back' is the wordplay.
'name' becomes 'otto' (Otto is an example).
'the gentleman' becomes 'sir' (I've seen this before).
'that sent back' says the letters should be written backwards.
'otto'+'sir'='ottosir'
'ottosir' backwards is 'RISOTTO'.
(Other definitions for risotto that I've seen before include "It has roots in Italian rice-based dish" , "Italian food" , "Savoury rice dish" , "food dish" , "Rice/stock dish" .)