You'll need to skin it down all the way to the end of the toe bone, that connects with the claw. Separating the toes and pulling on them individually, starting on the outside, works pretty well for getting them stretched so you can trim them down.
Be carefull not to pull too hard as you could rip the skin around the foot. You can find the tip of the bone that you can cut around, or you can clip it with some cutters.

Good luck!