Neither do I. The wordplay seems very straightforward, but the misprint leading to an E defeats me. I am in a similar position with 36a, where the misprint leads to a W. Still can't solve 4a, 21a or 39a, none of which appear to have a misprint.
Thanks SH. 4a is really bugging me. I have an answer, but cannot parse any of it, even though the clash it creates is connected to a thematic location and in the right place.