Silkies are (or at least can be) bigger jerks than most folks give them credit for. Flock dynamics will continue to change. Have you figure out if the Silkies are pullets or cockerels yet? How big is your set up.. are they confined or free range.. please describe roosts, feeders, and such?
That's a cross beak (Easter Egger). A very common genetic condition that (seems hard to detect at hatch) often gets worse with age. Most birds can survive. Some folks use wet mash or deeper bowls to help with feeding. Adding in extra feeding stations to minimize bullying. Possibly take her aside for special time out feeding of still regular mash if she seems too thin.
They (cross beak) may also have a harder time preening and picking things up off the ground.
It was hard to find any good link so I chose a few anyways for your review and basic informational purposes..
https://the-chicken-chick.com/scissor-beak-aka-crossed-beak-what-it/
https://bitchinchickens.com/2019/02/14/crossbeak/
https://www.muranochickenfarm.com/2018/09/cross-beak-in-chickens.html
I do hope they settle down and thrive together!