proclaimer
/proʊˈkleɪmər/Definitions
1. noun
A person or thing that declares or proclaims something, especially a public announcement or message.
“The town crier served as a proclaimer of the village’s news and announcements.”
2. verb
To declare or proclaim something publicly, especially in a loud voice or with great enthusiasm.
“The crowd began to proclaimer their support for the candidate, cheering and waving flags.”