Food tasted again including brilliant sauce (7)
I believe the answer is:
custard
'sauce' is the definition.
(I've seen this before)
'food tasted again including brilliant' is the wordplay.
'food tasted again' becomes 'cud' (regurgitated food which is chewed again).
'including' indicates putting letters inside.
'brilliant' becomes 'star' (I've seen this in other clues).
'cud' enclosing 'star' is 'CUSTARD'.
(Other definitions for custard that I've seen before include "-- Pie; -- apple" , "Pudding accompaniment" , "Cooked mixture of milk and eggs" , "Type of apple" , "Pudding sauce" .)