I agree with you that in the picture, the saddle feathers don't look long and pointed, and at 14 weeks, the comb appears small and pink too. But yet he does appear to have a sickle feather growing in.

If male, he should begin to crow soon.
That appears to be a very overgrown upper beak rather than a crossbeak, unless his beak also has a crossed/scissored appearance from the front view. Either way, he definitely needs a beak trim, otherwise the upper beak will continue to over-grow . After you trim his beak, providing a brick, paver, etc may allow him to keep the beak trimmed so you don't need to do so again.
The beak has a quick inside same as toenails do, and will be very painful if you accidently trim into the quick. Here is a beak-trimming article you should find helpful.
https://www.backyardchickens.com/articles/beak-and-claw-trimming.74570/