A meal (6)
'a meal' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for repast that I've seen before include "A meal concerning time gone by" , "Banquet" , "Food - tapers (anag)" , "lunch?" , "Prates about meal" .)
'a meal' is the definition.
(dinner is a kind of meal)
This is all the clue.
(Other definitions for dinner that I've seen before include "Supper" , "grub" , "What feeds" , "Eat it in the strange red inn" , "serving in 20 [MESS] ?" .)