Think I have finished but unable to fully pharse two answers.
17d write about railway climbing above spot up in mountains(8) pyrenees? 27a resolution keeping experts going without break(6) recess?
2 to do
3 down Government ending in ruin, engulfed by corruption and acrimony (9). L - R - - - N - E
12 ac precious stone in course of robbery lost. (5) B - R - -