Hightail it
I believe the answer is:
flee
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">hightail it</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for flee that I've seen before include "Take flight" , "Leave" , "head for the hills" , "Cut and run" , "Take to one's heels" .)