a loud complaint or demand
clamour - demand
A ‘clamour’ is a call for something. It is not synonymous with a request because a clamour is much more like a loud demand or command for something to be done or changed, and usually involves a group of people. The word can also be used to refer to a noisy, continuous sound, though it is less common in this context.
The government agreed to shelve their controversial policy after a growing clamour from the public for them to do so.
As soon as my children got up this morning, they were clamouring for me to take them to the park.
I tried to work from home, but could barely think with the clamour of the traffic outside my window.