Effect > Keying > CC Simple Wire Removal.
try that first.
Red Giant Software makes a Wire/Rig Remover as part of their key correct package as well
I did give that a try, but I think the way the background is in this particular shot, the result is not very plausible.
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The first thing you need to do is to track the footage with the rope and stabilize the part that has the rope in the shot. You want to eliminate the movement as much as possible. Then you'll mask out just the area that has the rope and run your wire removal there. There should be enough good background material to successfully remove the rope. What looks funky can be corrected with the clone stamp. Once you're done, you just put the movement back in the shot. If you want to try and use the clean plate you'll have to stabilize and probably time-remap that shot also to get it to match up.
There are a bunch of tutorials on stabilizing footage. I'd start there.
The next time you try and shoot something like this lock off the camera. Your clean plate must match within milimeters and within hundredths of a second to get it to work as a replacement. If your camera isn't on a dolly it's nearly impossible to line up a clean plate in post.