Split beak

[Lrweb7]

I have a rooster with a split beak. He's about 3 years old, and I've recently split my flock, so he's in with a dozen hens and one other rooster who is super chill. So there's not really fighting or anything in their coop.
I just noticed tonight that his beak is split, and I don't know if I should trim the split bit, or do a teabag patch, or leave it for now at this point.
He's often out in the field with his lady, but due to avian flu getting a little close for comfort they are inside. I don't know if his beak perhaps softened from frequent pecking in the mud, and then split when he was switched to eating out of dishes all the time...?
He's eating, but seems a little bummed. Any advice on how aggressively I should treat this right now would be appreciated.
His name is Spur, by the way :~)

 

[Wyorp Rock]

I wouldn't trim the beak for fear of it splitting more.
Tea bag repair may be the way to go if you are wanting to try anything.

If you decide to just monitor it, I would rub a bit of Vitamin E oil into the beak once a week.

He's seeming a bit bummed...do you think it's because of lockdown or maybe you need to investigate further? Do a little check up on, see that his crop is emptying, look for lice/mites, look at the feet/legs and bottom of feet for abrasions, bumblefoot and scaly leg mites, consider a fecal float to rule out worms.
Changes in routine can also have an impact on behavior/mood, but a rooster usually adapts quickly, ime, so if he still acts bummed after a few days, then I would check him over really well.