Crawl abjectly (6)
I believe the answer is:
grovel
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">crawl abjectly</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 grovel that I've seen before include "Cringe in abject manner" , "Cringe, be obsequious" , "Cower, abase oneself" , "Crawl abjectly" , "Humble oneself in supplication" .)