Toast bread (5)
I believe the answer is:
brown
I believe this clue is a double definition.
'toast' is the first definition.
(to toast something is to brown it)
'bread' is the second definition.
(brown bread is a kind of bread)
(Other definitions for brown that I've seen before include "Capability" , "Chocolate, perhaps" , "Dark - tanned - successor to Blair?" , "Fry in a pan until it changes colour" , "(Of a site) previously built on" .)