Thanks @rosematythyme for the suggestion. I'll give the wet food a try. Did you have her as a baby chick and did you have to separate her from the rest to keep her fed and watered without disrupting the rest of the flock.
I've raised all my chicks from 2-3 days old. No, my crossbeaks so far have both been relatively mild, so no special treatment other than routine beak trimming. I already feed fermented feed in morning to entire flock, so that takes care of the wet feed in deep dishes part.
Your chick's beak will probably get worse but some chickens have done just fine even with severe crossbeak, so only time will tell how she manages with it.