9a. Mark on letter spoken of in sepulchural times (5,6) ?R??E-?C???? 10d. In which lots are expected to be knocked down (7,4) ????????-??L? (wondering if this could be Auction Sale?) 11d. Incidentally when getting through an exam.. (2,7) ??-?????N? 20a. Make a change of heading, so to speak (5,6) ??T??-????S?