There is a lot of discussion about how the hips should move on the finish. However, how the hips move immediately after the finish is just as crucial! After the big opening of the hips, they should retreat and the hip should close quickly. This puts you in the correct plane of movement for a squat!
Finish up! A common mistake people make is driving their hips forward, instead of up. In order to learn how to use your hips effectively in the clean, it helps to think of jumping up, compared to jumping out. Do one of each; jump out, then jump up. Then, immediately address the bar and finish using the up motion.