ChrisE: " i think we might need to say what our answers to 11 Dare - "landing area" makes no sense to me. "
My proposed answer to 11 Down, with the crossings _O_T_O_, is a) a word for a game I never heard of, that is described as a "bank" game, so presumably one in which you can go bust ... and b) also a word I've known since childhood for parts of some airplanes, or aeroplanes, as we used to say.