Boating event (7)
I believe the answer is:
regatta
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">boating event</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for regatta that I've seen before include "Yachting gala" , "Sports event" , "Sporting event with boat or yacht races" , "Display of boats" , "race on the river" .)