Ros, read aloud the answers (to the clues) for 5 Down, 10 D and 45 A if you have it. Something should strike you. The same goes for 12 D, but my accent meant that one wasn't so obvious!
I have 5 dn and 10 dn, going to make my dinner saying them. Also have 1 ac but can't imagine a homophone for that. Are what is entered real words?
Syzygy told me, aristo!!