"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.
PUT A NEW BELT ON IT
Change the belt
rub soap on 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
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.
If the drive belt is squealing, then one of two things is wrong. Either the belt is loose or it is worn out. Adjust the belt tension or replace the belt.