Looks like honeysuckle to me, the leaves, bark, and how it is growing, all look like the stuff I have cut in the past.
Be careful and can check really easily, best time that I have found to cut it is the dead of winter then it’s easy to keep in check
Sometimes I’ve found it with some dark honey brown “heartwood” but I don’t think it is actual “heartwood” my suspicion is mineral staining.
It’s not a bad idea to rough them out now, just take some wood off the belly that’ll keep any checking on the belly where it won’t matter to much.
I have(or had) a writ up on what I do to season and work it somewhere, I’ll see if I can find it for you.