Word before toast or after peach (5)
I believe the answer is:
melba
'word before toast or after peach' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for melba that I've seen before include "Dame Nellie --; peach --" , "Dame Nellie --, Australian soprano" , "Onslaught" , "Famous soprano" , "Australian operatic soprano, d. 1931" .)