Marked ski run down a mountain (5)
I believe the answer is:
piste
(Other definitions for piste that I've seen before include "Ski-slope" , "Ski trail" , "Winter sports course" , "Skiing run" , "A ski run of compacted snow" .)
I believe the answer is:
piste
(Other definitions for piste that I've seen before include "Ski-slope" , "Ski trail" , "Winter sports course" , "Skiing run" , "A ski run of compacted snow" .)