Making waves?
I believe the answer is:
rowing
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">making waves?</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 rowing that I've seen before include "Olympic event" , "Sport associated with Henley" , "Aquatic sport" , "Propelling boat with oars" , "Steven Redgrave's sport" .)