I'm getting the same symptoms. i.e. Clutch clicking then not being able to disenage easiliy.
I took it to the garage but they could find no obvious fault.
My model is a 'W' Reg too. I'll have a look at Dave's advice to check the the Circlip on the pedal .... The idea of a 10 Pound fix also sounds good to me.
Bharat
April 2010