Appreciate the feedback. Still not sure I understand this clip - sounds like some sort of circlip, but all of those that I've ever dealt with HAD to be removed first before the axle could come out. Please correct me if I'm wrong, but it sounds like I essentially ignore it here, other than requiring some force to overcome the clip's retaining action, yes?
I've already got everything detached from the knuckle/hub assembly (except the axle), and this side had already had the replaceable ball-joint upgrade done, so I've removed that, if only to get it out of harm's way. So given that the axle nut is still in place, all I need do now is yank on the knuckle with a slide-hammer, or maybe carefully bang it out with a BFH, and the complete shaft should just come along with it, right?
Keep those cards and letters coming!

Brad