A rubber strap wrench for removing the nut that holds the clutch on? I have not tried it but I didn't think that would work.

I don't mind buying a tool if I need to but first I need to know if the tool I have will work.

BTW, I'm not concerned about holding the clutch while removing the nut. I think I can manage that without any special tools and I can see where a strap wrench might work for that.