no mate, it should never make a noise like this. sounds like the bearing retainer clip has come loose which is an external spring around the bearing, held in by a circlip. the clutch itself will make a squeeling / loud whining noise when it's on it's way out
to confirm this, jack the front of the car up and get yourself underneath the car directly under the air con compressor. get a friend or someone to turn the aircon on and off so that you can confirm where the noise is coming from first and foremost