Wilsons Sandbox

What tips do you have to inspect and fix the release lever and internal mechanisms (if I remember right the lever operates the clutch "hub")? I have a possible clutch issue on my A14 (17K miles). 2 weeks prior to losing the ability to take the clutch out, I was unable to find Neutral when the engine was hot. On the way home, I was unable to take the clutch out (except shifting with foot only) and had to limp home in one gear and brake/rev thru intersections. The release lever (when cold) moves quite freely (nearly 180 deg) and doesn't take the clutch out. I haven't checked how easy it is to operate when warmed up. Thanks in advance. Ed