Hi Malone,
You know I did 😀I always do - whether the preamble calls for highlighting or not! This time, though, I only highlighted the part of the question after "what is.....?" and not the answers, because they run in to each other and so wouldn't make nice patterns.
I couldn't parse 8a although I'm sure of my answer...
Nosy Gaston's followed, mostly in order to keep safe (9)
I can sort of see the French/Gaston's for "followed" (although it's mixed up) but wonder if that's anything to do with it.