Final recourse (4-5)
I believe the answer is:
last-ditch
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">final recourse</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for last-ditch that I've seen before include "Final recourse" , "Eleventh hour" , "Stitch lad up in final defence" , "Denoting final attempt (to do something)" , "Of an attempt or stand, final and desperate" .)