Answers are mostly connected to literature. 12a If Mr. Wu took Diana Cooper out of his books would he be undone?: ?n?t?t?h?d - Unstitched seems to be the only thing that fits, but I can't see why. 22a/18d "Caterpillars of the kingdom" out of order: like a leafy shrub after birds taken to going back: ??g?t ?u?h? ?n? ??e?n. 21d 1000 Pennsylvania Avenue is home for them: ???m?s - I thought Obamas, but the White House turns out to be 1600 Pennsylvania Avenue!