Replaced my clutch lever 2 weeks ago. Very simple, no need to remove any micro switch. But, the socket needs to be thin enough to slip between the switch and the nut. Mine was a tight fit, but it worked fine. Try rotating the socket a little bit at a time. First 2 times I tried mine it would not go on the nut. But, rotating the socket the third time it was "snug", but it went on just fine.
Watch for the spring that may want to pop away as you remove the lever. Best thing is take your time, look everything over carefully as you proceed. Took me about 12 minutes total.
Be certain to apply lube/grease to the cable pivot point.