If you plan to keep using that clutch center, you will want to keep an eye on it for further damage. Once the metal starts to get grooved, it will be easier for more damage to happen. As more damage happens, there is the possibility for the metal clutch plate teeth to get stuck in those grooves, resultsing in the clutch not working properly.

You can smooth out the grooves for a temp fix, but I would get one ordered just to have it ready to go. Would suck to be at track day with your clutch not working, just ask my girl friend about that with her Ducati 748 that had that issue.