Fixing pin; run away (4)
I believe the answer is:
bolt
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">fixing pin</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">run away</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for bolt that I've seen before include "Leave suddenly and in a hurry" , "Fasten - flee" , "for security reasons" , "Type of lightning" , "Sprint? Yes he does!" .)