Xara :: How To Remove / Delete Shape Handle

I've used Xara for a while now, but I've never figured out how to remove or delete a curve edit handle. I mainly want to get rid of ones that are created spontaneously when I add/delete other points on a shape. Attached is an example where the curved cusp of the arrow came, seemingly, from nowhere. All I want to do is restore the angular property. I've tried moving the handle to be on top of the point indicator, but that's an imprecise action ... that often leads to the shape spinning wildly.