Tsv thats a bugger that, I has that on a tranny brake pipe, apllied brakes they worked but one side stuck on, same thing collapesed pipe, after a while it released took fecking ages to find that on.
You might want to try rocking the landy forwards and bacwards whilst putting a bit of pressure on the pedal to see if the clutch will let go, you'll get a good idea if the master cyl is ok but bleeding it first, if the master cylinder pumps brake fluid then its probably ok and a stuck clutch.