Door sign); ASIANS (17A Mongol horde, e.g.); MOTIVE (65A Whodunit plot element); IRISES (68A Spring bloomers); and ATNINE (71A When many stores open). Five-space entries: STEIN ( 20A “Rose is a rose is a rose is a rose” writer); UTICA (34A Erie Canal city); SIXAM (43A Early time to rise); CUTIE