I have two Clematis vines in my front garden. One is doing GREAT! The other....not so much. =/ It was a tangled mess. I finally got the poor thing untangled today, but am wondering. A good amount of the ends has turned brown and dried out. Should I leave it this way, will it come back? ....Or, snip th ends?

I'm not really experienced with Clematis... As you can probably tell. =)