Use an external recorder? Double the odds that one might be usable.
Clipping is pretty hard to undo. An external recorder might also give you some limiter options to prevent clipping. But after the fact, you really can't do much. Depending on what is clipping anyway. Low rumble of pure wind noise and you can filter some of that out. Maybe even intentionally clip some more to push it out and the subject matter up. Low pass filter, High pass filter, not really ideal for music sources, but for talking heads it can make an instruction video audible / listenable.
Having downloaded it now. That sounds more like distortion than clipping. Maybe even wind noise if your cam was close to a PA or something. Not much to be done about that IMO. Was anyone else there recording that might have better audio that you could swap out for yours?