Cheers aristo, I saw the homophone for 'sighs' but 'uh' didn't quite cut it with me. Yes, of course, the LEM is an acronym... doh! I understood that the word for 6d must be right because it makes sense as two X two letter words as a prefix and then to mean being called up, just never heard it before, you American tricksters, what are you like... ha ha
A very clever grid though I thought.
I am working on something for a treat for the forum members for Christmas at the moment that I don't think has ever been done before, it's nothing to do with the JE which is perfectly safe the way it is, but a completely new spin on a clue & answer based puzzle which I think - if I get the final puzzle correct, it will give people a good few hours of fun over the festive period and it should appeal to all levels of crossword proficiency. Can't give anything away just yet but will hopefully have it ready for Xmas.
Off to bed now, goodnight all