Ringmaster (noun)

A person who manages and directs the performers in a circus ring.

Origin:

Late 19th century: from ring1 + master.

Examples:

1. The ringmaster was responsible for keeping the audience entertained.
2. The ringmaster introduced each act with a flourish.
3. The ringmaster was dressed in a top hat and tails.
4. The ringmaster's voice boomed out over the crowd.
5. The ringmaster was the star of the show, commanding attention whenever he entered the ring.