I've seen a few people make this, so I decided to try it out (Huge mistake). I started working on this last year. I was in early 5th grade. I didn't know what was wrong, so I gave up...until today (late 6th grade), when I remembered it. I looked through the code...and found the error in a matter of minutes xD. Funny how I can just see through something completely, and after a while, just find the error. The hard part was actually fixing the error. I tried a few solutions, and ultimately figured out that it was pointing to the x position of the clone that was nearest on the x axis, and doing the same for the y axis (these were often entirely different clones). What I did was I had it calculate the X distance + the Y distance, and point to those coordinates. It was a huuuuuuge hassle, but I think it was probably worth it. So, after a cool idea, lot of pain, and a year, I can say that I have successfully created a project that points to the clone nearest to it.
Inspiration from @Psiborg (@griffpatch's brother), but I did most of the coding. It might have been the scratch wiki for the point to XY, but I can't remember. It was over a year ago xD