Winding ski race (6)
I believe the answer is:
slalom
'winding ski race' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for slalom that I've seen before include "Type of ski race" , "Windy skiing event" , "Winding ski-run" , "Downhill ski event" , "Ski race down zig-zag course" .)