Breakfast like small child eats (5)
I believe the answer is:
toast
'breakfast' is the definition.
(toast is often eaten as breakfast)
'like small child eats' is the wordplay.
I cannot really see how this works, but
'like' could be 'as' and 'as' is present in the answer.
'child' could be 'tot' (term for a young child) and 'tot' is located in the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for toast that I've seen before include "Health drunk" , "Brown in front of a fire" , "Cheers" , "A bit of a bloomer, possibly" , "Warm, it may be eaten" .)