Runner (3)
'runner' is the definition.
(something which 'runs', ie moves quickly on snow)
This is the entire clue.
(Other definitions for ski that I've seen before include "Runner for use on snow" , "Walk on snow" , "Type of snow shoe" , "Glide on snow with special footwear" , "Winter sport item" .)
'runner' is the definition.
(I know that blade is a type of runner)
This is the entire clue.
(Other definitions for blade that I've seen before include "See 24 Across" , "Sword" , "Cutting part of grass?" , "Flat part of an oar" , "Runner on an ice-skate" .)