When it comes to popularity, the kettlebell swing is most definitely at the top of the list for good reason. That being said, the Kettlebell Clean has a ton of benefits and will have great carryover to other exercises like overhead pressing and squatting.
When you master the clean, you create the safest and most efficient way to get the kettlebells from the floor to your chest. Once the weight is at your chest you can squat, press, etc.
A common mistake with the clean is that people often cast the weight out in front of them like they would in a kettlebell swing. With the clean, you want to keep your elbows in tight and pretend you are zipping up the front of your shirt.
Try the below wall drill to clean up your clean.
To get the right distance away from the wall, put your palms against the wall and straighten your arms.