Is clicking at the joint line of the knee considered to be a mensicus tear? my joint clicking and get stuck all the time and is very painful.

I can be: This can be symptms of a meniscus tear, early arthritis or a loose body floating in the knee. The history of onset along with some weight bearing xrays can help. If they are normal, a MRI will likely show a meniscus tear. This does often require surgery.

Yes: The symptoms you describe are most consistent with an injury to the meniscus cartilage in the knee. Recommend an MRI scan and an orthopaedic consult to help you.