Thank you very much, brendan. Of course I had the wrong Keaton - silly me. 13D parsing came to me as I was falling asleep and I really have to kick myself for not seeing what the fastener was in 8D.
Like many others, I didn't like the equating of 4, 1D with 14A; it felt like something that might have from Benny Hilli or The Two Ronnies.
As for 25A, well, I guess you had to be of a certain age to have heard this expression. Verdict: please do better next time, Paul.