Definitions

1. noun

A person who makes a great noise or commotion, typically in protest or to attract attention.

“The clamourist was shouting loudly in the town square, drawing a crowd to her cause.”

2. noun

One who is fond of or given to clamouring or making a loud, insistent noise.

“The politician was accused of being a clamourist, trying to whip up public support for her policies.”