Got to admit defeat today - stuck on four - probably got something wrong somewhere! 1a. Small worm or insect larva. (8) I have ?E?M?C?L?. 27a. Frame, often with a clear protective front, for displaying articles. (6,3) I have ?H?D?W ???. 15d. Crisp cake containing almonds (9) I have ?R?Q?A?T?. And finally 24d Person's costume, often bizarre. (3-3). I have ?I? ??T. Thank you in advance.