Is Climacus's comic ironist within humour, or irony?

I've read humour, for Kierkegaard, is defined as "irony to a higher power", and I can't find much else on it (if anyone knows of any good material on this please let me know). I am trying to write an essay on the virtues of irony and know little about Kierkegaard, aside from what I learned from 1/3rd of a Coursera course ha.

So yeah, would Climacus's 'comic' ironist lay between the ethical sphere and the religious sphere, as humour, or is it still between the aesthetic and ethical sphere, as irony?