Is 26a missing an "a" at the beginning of the first word of the clue and the answer a short version of Dorothy. That's the only unsolved clue left.
The rest is still a mystery. I can see the anagram at 37a throws up a miltilary observation system, and I can see most of the letters for Nimrod, an old one of those, in 5d, but I have no idea if those are relevant. Grrr