Exclude bread rolls (5)
I believe the answer is:
debar
'exclude' is the definition.
(I know that exclude can be written as debar)
'bread rolls' is the wordplay.
'rolls' indicates an anagram (letters move or roll into new positions).
'bread' anagrammed gives 'DEBAR'.
(Other definitions for debar that I've seen before include "Black" , "Exclude (from doing something)" , "Shut out, preclude" , "Refuse to admit" , "Exclude - bread (anag)" .)