Struggle (with) (7)
I believe the answer is:
grapple
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">struggle with</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 grapple that I've seen before include "Attempt to get hold of, or seize" , "Engage in close fighting" , "Fight hand-to-hand" , "Engage closely with" , "Go to work on" .)