When to feed young child brown bread (5)
I believe the answer is:
toast
'brown bread' is the definition.
(I've seen this before)
'when to feed young child' is the wordplay.
'when' becomes 'as'.
'to feed' indicates putting letters inside.
'young child' becomes 'tot' (I've seen this before).
'as' inserted into 'tot' is 'TOAST'.
(Other definitions for toast that I've seen before include "Cheers" , "Warm, it may be eaten" , "Health-giving" , "Breakfast slice" , "making this pledge?" .)