Breakfast item for health? (5)
I believe the answer is:
toast
I believe this clue is a double definition.
'breakfast item' is the first definition.
(I've seen this before)
'health?' is the second definition.
(I've seen this before)
'for' is the link.
(Other definitions for toast that I've seen before include "Health drunk" , "Raising of glasses" , "A bit of a bloomer, possibly" , "cooked 13 [BREAD]" , "Brown in front of a fire" .)