Hello drxx, I'm not as far on as you, and I have now gone fully up the wall. Having a lot of trouble parsing some clues. I have 5 unclued wall entries, and am still none the wiser. I also have an idea what the title may refer to. I may give up now.
I have 6 letters in the top left 9 letter across entry, including the firt and last letter, and am going spare not being able to deduce it. I have the entry beginning with K, so I realise that the clue for it has to be just befire it. LOL.
Good luck and I hope you finish!