Race with gates (6)
I believe the answer is:
slalom
'race with gates' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for slalom that I've seen before include "Ski race down zig-zag course" , "Downhill ski race over a winding course" , "Downhill ski-race over a winding course" , "Downhill ski event" , "Ski racing event" .)