Scope in the morning section (5)
I believe the answer is:
ambit
'scope' is the definition.
(synonyms)
'morning section' is the wordplay.
'morning' becomes 'am' (as in bi:00 AM).
'section' becomes 'bit' (I've seen this in other clues).
'am'+'bit'='AMBIT'
'in the' acts as a link.
(Other definitions for ambit that I've seen before include "Circuit, compass" , "Scope, extent, or bounds of something" , "Scope or circuit" , "round" , "Range, scope" .)