Reporter's rising to give agreement (6)
I believe the answer is:
assent
'agreement' is the definition.
(assent is a kind of agreement)
'reporter's rising' is the wordplay.
'reporter's' shows a homophone (sound like) (report can mean to speak something aloud).
'rising' becomes 'ascent'.
'ascent' is a homophone of 'ASSENT'.
'to give' acts as a link.
(Other definitions for assent that I've seen before include "Agree, acquiesce" , "Nod" , "Permit or approve" , "Accede, acquiesce" , "Okay" .)