21d. A ballet movement which the dancer completes by landing on one foot? (5,4). I expect it's French! b - i -e/- o - e. 10a. A tuber of taro? (4). 2d. Morse code in military slang? (4,5). i - - - / u - p - -. Even an ex military man in the family can't do this so there's no hope for me.