Ian Collins is Leading Britain's Conversation.
What is the Aintree Iron in the song by Mike McCartney saying “Thank you very much for the Aintree Iron”.
** Definitive **
Name: John, Aintree
Qualification: I heard it from the horse’s mouth
Answer: It’s a pub. I saw a TV programme where someone asked him what it was and that was his response.
(James O'Brien: I'll accept it, although someone has also emailed an interview with Mike McCartney, where he refused to give the answer to this question.)