Olympic sled (4)
I believe the answer is:
luge
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">olympic sled</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for luge that I've seen before include "Toboggan used in the Winter Olympics" , "Winter sport" , "Racing sled for one or two people" , "Glue for a one-man sledge" , "Olympics sledge" .)