Many thanks Brendan and Jono
One out and two in. Just four to get now, three of which are "characters". 1ac,2d,22d and 28ac. I shall go away and think some more.
I forgot to send this before eating my dinner. As a result, I've now finished. I'm not sure about the parsing of 28ac and I don't undersatnd why I didn't get 22d much earlier.
So, once again thank you for your help. Rest assured I don't send it in. I got the prize (the book) ages ago. They must have a lot of them. It is/was a bit tedious.