Originally Posted by Captain Cotswold

Gotta agree here.
I'm not sure which side of the car you need to be under(mines a 4x4, so passenger side) but get under and get hold of the cable end and see what it feels like on the clutch arm.
It'll be either
1/ Fairly movable, you can pull it enough so that it's not quite on the arm, so no tension on the cable at rest. (It's an involved investigation coming up.) Or
2/ it's effing welded hard up against the clutch arm and you can't pull it at all away. (Cable error/clutch ratchett error/ cable routing error)

Let us know how it is.
Cheers mate