I would leave it as is. It will look natural. Deer break antlers in fights, etc. Who knows? You may have the golden glove whitetail champ on your wall? I shot a dandy 8 this year with one that was broken/rubbed off. It was trying to be a 10. I left it. Just got him back and he looks great......EXACTLY like he did when I saw him in the crosshairs.

Nice buck!