Wave rider (6)
I believe the answer is:
surfer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wave rider</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 surfer that I've seen before include "One riding on the crest of a wave?" , "See 7" , "person online?" , "Boarder" , "Board rider" .)