Found this hard today, too much sun perhaps. 1ac, Match changed, sire, bu important goal. e?u??????. 3d, Go-between has affair with policeman. (7,7) ????s?n ???i?e?. 19d, Supporter can smile after match (3,4) ??e?e?m. 10ac, All characters in lap ran in a square. p?a??. Could it be plain? Need a few more, but maybe these will help me to complete. Thanks in advance!