Try this Stuart, with the car stationary, apply the handbrake, start the car and engage 3rd gear, leaving the handbrake on bring up the clutch until it engages then raise your revs and try to drive off, if the engine stalls with the clutch pedal about halfway up your clutch is probably ok, if you can take your foot off the clutch pedal with the engine still running your clutch is shot. The squeal is just the thrust bearing and noting to worry about.