Glides over snow (4)
I believe the answer is:
skis
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">glides over snow</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for skis that I've seen before include "Engages in a winter sport" , "On these in slalom" , "Snow runners" , "Travels on snow" , "More than one runner" .)