Breakfast treat
I believe the answer is:
scone
'breakfast treat' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for scone that I've seen before include "Perth's settlement" , "Savoury cake" , "The Stone of -----, returned to Scotland in 1996 after 700 years" , "Small plain cake and Scottish town" , "Cream tea cake" .)