Do u have tendons in your collarbone areas?

Not realy. We have mascule attacment to the collar bone.
Mostly Ligaments. Mostly ligaments, but there are some tendons such as the tendon of the subclavius muscle, and rotator cuff tendons.
Anatomy. It all depends on what you mean by tendons. The muscles do attach to the bones in the shoulder. What are you really concerned about? What are your specific symptoms that are causing concern?