Just need 3 to finish. 13d, 'Ornblower drowns leading members of orchestra in 'The Creation', perhaps. ?R?E?R?O. 30d, Deliberate over single form of tuning, (4-4), M?A?-T?N?. (M?A?-TONE?).
45d, Spanish king I spotted in carriage heading north, ?A?E?R?C. Any help, greatly appreciated!!