Pull at (3)
I believe the answer is:
tug
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pull at</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 tug that I've seen before include "Pull hard or suddenly" , "draw with some effort" , "Pull jerkily" , "Small ship for pulling" , "Tow boat" .)