Announcer (6)
I believe the answer is:
herald
'announcer' is the definition.
(herald can mean to announce or predict)
This is the entire clue.
(Other definitions for herald that I've seen before include "Proclaim the approach of, like archaic messenger" , "Announcer - forerunner" , "Harbinger, precursor" , "Proclaimer" , "Bringer of news" .)