Post-op clavicle surgery 8 days out, out of a sling, gaining back r.o.m., limited pain. question-is there any risk of safely excersing?

Yes.: While your fracture has been fixated with an implant construct, your bones have not yet healed. It is absolutely possible to loosen the implant during your exercising and could potential cause you to require further surgery. This is a good question for the orthopaedic surgeon who took care of you. He/she can prescribe a graduated return to activity that ensures safe healing of your fracture.