First, I would check what caused the problem, is there any liaison inside the beak.
At this age beak is very soft and it can be corrected easy.
One can use rubber band over the beak to force it in propper direction.
This must be done carefully, not to hurt or further deform beak. Also band should be removed at feeding time, baby to be able to eat. If you leave him with parents, they may peck on the band/baby trying to remove correction band so I would monitor closely.
Well I put a very small rubber band. Three loops. Youngster was going nuts. It is 2 weeks old and pretty big compared to my other youngsters.Rubber band shot out like a sky rocket. Hummmmmmmmmmmmm. Duck tape? Just kidding. Also its the bottom beak thats off to the side.