Breakfast sizzler (5)
I believe the answer is:
bacon
'breakfast sizzler' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for bacon that I've seen before include "What the breadwinner brings home?" , "The meat to bring home for success" , "English philosopher, d.1626 - Irish painter, d. 1992" , "English breakfast staple" , "Meat - essayist - painter" .)