How do I stop a child in my neighborhood from trying to be my daughters friend?

I feel so terrible about it, but there is a 13 year old girl in my neighborhood that is desperate to be friends with my daughter who is 10. I have always been open and accepting of all children my kids have played with, but this girl really gets on my nerves. She is way more developed than my daughter and her friends (who are 10 and 11), and she wears dirty revealing clothes and usually a very undersupportive bra. She is a loner and she says the strangest things that make people distance themselves from her. She is also very physically aggressive and uses profanity. I did meet her parents and they SEEM normal and caring, so I am not certain as to how this girl became so socially awkward. Normally, I try to talk to the kids I have problems with, and often they improve over time. So I feel simply awful that I don't want to do this with her. She makes me uncomfortable in a way that I don't even understand, and I simply don't want her around my daughter or my daughters friends, who also think she is very strange. The only one who really likes her is my daughter, and that is because my daughter likes everyone and is a very accepting person. I am just grateful that she has other girls around her to protect her and inform her of this girls oddities that she is so able to overlook. I need to trust my instincts on this and keep my kid busy so she can avoid her, but I need a diplomatic way to do it. She is not just going away.