PUT A NEW BELT ON IT
rub soap on the belt
You can spray it with a LITTLE belt dressing but don't overdo it. It also may be caused by sosmething not being alignied in the pulleys.
"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.
Replace the belt.
Change the belt
Adjust the belt or replace it with a new one.
Just a guess, check the alt. belt.
you probly have a belt slipping, a can of belt dressing should stop the sound
It is squealing because it is loose or worn out. Tighten it and if that does not help, replace it. If it is a serpentine belt, just replace it and check to make sure the idler tensioner is working properly.
Replace the tensioner. Stop it from getting wet by making some sort of shield to prevent water from getting to the belt.
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.