Truly floored by three clues : 24 across - secrets and mysteries a?c?n?33 across - essential oil from rose petals a?t?r - both assuming that 20 down is octavo. Can someone enlighten me, please?
28a Extinct primates believed to be related to humans A-E-E- (6) 15d would like to have confirmation of MAY BEETLE for :Another name for the cockchafer, an Old World insect (3-6) Help on both would be...