Brit's breakfast, informally (3,2)
I believe the answer is:
fry up
'brit's breakfast informally' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for fry up that I've seen before include "Gut-buster breakfast" , "Full breakfast perhaps" , "Greasy hangover cure?" , "Bacon, sausage, etc. meal" , "Bacon and eggs?" .)