Strong current (4)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">strong current</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 race that I've seen before include "Rapid current" , "People; run" , "Contest; nation" , "compete to come first" , "Participate in speed contest" .)