I'm going to chime in with a Nay on this piece. Im a modern knapper, and the flaking and chipping seem like that of copper tools. As others said, no basal grinding either, the whole thing gives off a more "round" shape than anything, From the ears to the tip.... Also, that material looks to be either cooked or simply higher grade. The Clovis people would had that knife/point, made a lot nicer i do believe with the better rock.
Just my 3 cents....