Strike with the fist (5)
I believe the answer is:
punch
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">strike with the fist</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for punch that I've seen before include "Tool for making a hole" , "Thump" , "Magazine of yesteryear" , "Strike; wine-based drink" , "Strike; former magazine" .)