Have a go (3)
I believe the answer is:
try
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">have a go</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 try that I've seen before include "Make severe demands on" , "Make an attempt" , "Aim" , "Hear court case" , "Test; attempt" .)