This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. One that announces, especially a person who introduces programs, reads announcements, or provides commentary on television or radio.

n. One who makes announcements.

n. One who announces.

n. One who announces or gives notice; a proclaimer.

n. reads news, commercials on radio or television

n. someone who proclaims a message publicly

""Arlen Specter switched parties to save one job: his, not yours," an announcer is heard saying at the close of the ad."

bouncer   

broadcaster    commentator    presenter    columnist    pundit    interviewer    cameraman    blogger    entertainer    journalist