Just to say thank you to everyone. I think I have finished and eaten my dinner, despite the odd doubt about one or two: 24ac and 21d, but I was relieved to find the answer to 9ac and parse 17ac.
My FOIs were 15ac, 13d and 2d.
My favourites were 23ac, which I finally got, and 11ac. What does COD stand for?
There were a number of words I didn't know, which I had to look up, though I was pleased that two of my favourite authors appeared.
Once again thanks for all your help. I nearly gave up. I can now settle down to Hidden Assets, which I think is really good.