Need quite a few. Hoping these will break the back of it! 20ac, Poet and economist meet up in Buckinghamshire (6,6). 7d Start to put in performance in competition (11). (S????? ???i??). 25d, Play ball with Gary and a team depleted by half (9) C?????A??. 11d, Musical version of Twelve nry Men? (5,2,4). Help, please!!