You cannot clone anyone using a spell, just like spells cannot make you a twin. Perhaps you can find a look alike to this person or yourself. I'm not sure what you would want to do with a clone of someone.
Well. From this site. A look alike will do just fine. But my deity did confirm that she would never be the same person. I am okay with that. However, the biggest problem is the look alike would lack an identity in the government database. In short, I'd have my hands full.