If this is a first person only game, you could always just get rid of the entire body except the arms, since they’re all you’ll ever see anyway. You can’t clip whats not there.
If you need both a first person view and a third person view (e.g. so others can see your body in multiplayer) you can use two different skeletal meshes, one for the first person arms, and another for the entire third person body. Each would have their own animations and such, you would just set the third person mesh to “Owner no see” in the rendering panel, and the first person arms to “only owner see” right below it. If those are set you don’t need to worry about working around clipping.
