(13a) From a different English class. (4) ???M.
(14d) She's the one I love to bits. (5) ??I??.
(16d) Ok ok I yell, learning initially about what would appear probable. (4, 6)L?O? L?K???.
(21a) Do not ignore this word from the editor. (4) H???.
(29a)Now to hear the end of this story. (4) T???.