You ask some good questions, but first off the map looks good, so well done!
Is it clear enough how the map wraps around? What can I do to make it more clear?
Nope. I don't think the map would get approved right now. In fact, despite your description and clicking around on the map I am still somewhat confused. I think your intention of making a 'split' territory (one territory has objects on both side of the map) is good, but in practice it doesn't work well. At best you are inconsistent with the format here, at worst I am not getting it at all.
I would recommend just getting rid of the map-wrapping tbh. But if you want to keep it, it needs to be more intuitive. A left-right wrap and top-bottom wrap is something you could consider doing instead. Compered to all your other questions thru, it's the map's current wrapping that needs to be worked on.
I assume that the codes on the outside are supposed to tell where it wraps, but right now that only seem to work half of the time? As well as those colors not being the same as the bonus colors creates confusion for me.