Its the alternator drive belt slipping and it needs to be adjusted. A vee belt should have about 1/2 inch of in and out movement halfway (about an inch or 25mm of free play) along the longest length between pulleys. A flat belt should be adjusted according to the manufacturers specification.
A worn belt will cause a squealing noise. The squealing noise is caused when the belt slips. Tightening the belt will temporarily fix the problem.
"Squealing" is usually from the belt or brakes. use belt conditioner to stop a squealing belt.(usually sold at walmart) you can probably figure out how to stop squealing brakes. but if not they need to be replaced. people need to start reading those owners manuals the car comes with.
The belt has worn on the edges and creates friction which causes squealing. Also, sometimes when a belt is cold it will squeal.
Replace the belt.
Nope.
PUT A NEW BELT ON IT
Change the belt
Yes. A vehicle can be driven with the belt squealing. Since a mechanic with a wrench and a crowbar can fix it in 2 minutes, I have no idea why anyone would tolerate it!
rub soap on the belt
A 1995 Geo Prism may experience squealing if the power steering pump is failing or the serpentine belt is loose. Tightening the belt and applying a belt conditioner are the first step to addressing this problem.
Usually this means one of the pulleys is locked up. The belt winds around multiple pulleys, when one locks up it doesn't rotate and the friction is burning away the belt, giving you the smoking and squealing.
This is most likely your belt squealing and not the clutch itself. Try some belt dressing available as a spray on from all parts store. If this stops the squealing you have a varnished belt and probably should replace it soon.