"be a featured speaker" is correct and usable in written English.
It indicates that someone has been chosen or invited to speak at an event and will be given a prominent or special role. Example: "I am honored to be a featured speaker at the upcoming business conference. I will be discussing the latest trends in marketing and sharing my insights on successful strategies."
A14 NEW YORK/REGION B1-8 Lazio to Speak at Event To Raise G.O.P. Soft Money Rick A. Lazio, who has pressed to expunge soft money from the Senate race with Hillary Rodham Clinton, will be a featured speaker a fund-raising dinner expected to raise several million dollars in soft money for the State Republican Party.
Ruchira Gupta, the Founder and President of Apne Aap, a women's rights organization in India, will be a featured speaker.
Actor Roger Moore will serve as Master of Ceremonies; singer Harry Belafonte will unveil the statue; the stars Mia Farrow and Isabella Rossellini will be present, and Nane Annan, wife of UN Secretary-General Kofi Annan, will be a featured speaker.
Mr. Rubio will be a featured speaker on Saturday at a fund-raiser in Iowa being hosted by Terry E. Branstad, the state's Republican governor.
Brown has been hanging out with other coaches since then, working with Boston Celtics Coach Doc Rivers, and Saturday he will be a featured speaker at a clinic conducted by Harvard Coach Tommy Amaker.
5fae19fb-adba-4518-abb8-f700112f6809 This week's puzzle is an original creation from a card expert, Colm Mulcahy, who will be a featured speaker and performer at the upcoming Mathematics of Various Entertaining Subjects (Moves) conference Aug. 4-8 athehe Museum of Mathematics in Manhattan.
Phillips was a featured speaker.
The author David Halberstam was a featured speaker.
Finkelman was attending his first conference, and Fodor was a featured speaker.
This afternoon I attended a conference on technological innovation, organized by the Rockefeller Foundation, where Dr. Post was a featured speaker.
She was a featured speaker last October at the first walk to raise money for the National Eating Disorders Association.
