Arcane words as lights (e. g. 8D) and extremely subtle cryptic cluing (e. g. 10A) make Pabulum's puzzles *far* tougher than, say, Doc's. After a struggle, I think I have got everything, but I am not sure about 7D. Is "Vatican City" an example of the light, and if so, can anyone say how the first half of the clue works?