Well, I didn't find that easy, but thanks to Forum members, I finished. There are some clues I couldn't parse and some words I didn't know like the bird. There were some definitions that were a bit of a stretch.
I should have got 29ac sooner as a retired transport planner. Chris, I was lucky to escape the peril of a 24ac - redbrick not oxbridge.
FOI was 9ac, albeit with the wrong ending. LOI was 25d. COD was 22ac
I expect I shall be here next week asking for help, for which I'm very grateful.