Train skater in West Indies to take up another sport (5-3)

I believe the answer is:

water-ski

(Other definitions for water-ski that I've seen before include "Be towed behind a speedboat" , "Get towed behind a motorboat" , "Glide over a lake or sea" , "Travel behind boat on boards" , "Tweak sir (anag)" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app