Clean
Clean has three definitions in climbing. To clean a route is to remove climbing equipment from it. Cleaning is done by the second climber coming up the route. He often will use a Nut Tool to aid in the removal of hard-to-get gear. Clean also refers to doing a route without falling or hanging on the rope (also called a Red-Point Ascent) or to ascend an aid route without using equipment that must be hammered into the rock, which scars and damages the rock surface.
