The forum is great and so was this puzzle. I have a quibble though. In the wordplay for 37, November is represented by N. My (oldish) Chambers doesn't give that abbreviation under 'N', rightly in my opinion. Is this therefore a crossword convention that is supposed, somehow, to be known to solvers? This abbreviation for months of the year is hardly used in practice, for the obvious reason that it would be ambiguous. Any views?
OK, full disclosure, it took me a while to get 37!