The answer to 'shut-off valve clogged' is that a clogged shut-off valve is a common plumbing issue that can be caused by mineral buildup, debris, or corrosion. Symptoms include difficulty turning the valve or water not shutting off completely. To fix a clogged shut-off valve, you can try to manually turn the valve back and forth to loosen the blockage, or use a plumber's wrench to turn it. If that doesn't work, you may need to replace the shut-off valve, which is a job best left to a professional plumber.
Trying to fix a clogged shut-off valve yourself can be risky if you don't have the right tools and experience. It's generally best to call a licensed plumber, who can properly diagnose and resolve the issue to avoid further damage to your plumbing system.