This one was going quite well for me, but I'm completely stuck in the top-left corner. I have a feeling if I can get one of them, then the others might fall into place, but that PDM just isn't happening for any of them.
I have a feeling 10a and 10d might be swaps - and that the parasitic infection is the obvious one. I can't parse it, though. Does 'rallying' have a special meaning in crossword parlance?
As for 'On with cape and hat', it's bound to be a kick yourself one when you get it, but I just can't see a way in right now.