Scope for the morning morsel? (5)
I believe the answer is:
ambit
'scope' is the definition.
(synonyms)
'morning morsel?' is the wordplay.
'morning' becomes 'am'.
'morsel?' becomes 'bit' ('bit' can be a synonym of 'morsel').
'am'+'bit'='AMBIT'
'for the' acts as a link.
(Other definitions for ambit that I've seen before include "Compass, scope" , "Scope or circuit" , "Range, scope" , "Scope or confines" , "Circumference" .)