Persist (8)
I believe the answer is:
continue
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">persist</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 continue that I've seen before include "Last" , "Don't stop, keep going" , "Persist" , "Go on without stopping" , "Carry on" .)