Thanks, AS and Crates. I’m happy about 29a now, though I don’t think much of it as a clue. And thanks to other posters as well for clarifying many other clues. I’ve only just got all the 14 letters, though I had a complete grid some time ago.
At one stage I could see what I thought was a promising possibility. I thought I could see “Urish sea poet” which I imagined to be a Joycean form of “Irish seaport”, appropriately positioned in the grid, which would presumably be a map of Ireland, so I spent a long time searching Joycean quotes looking for one beginning with a 14-letter word!