Pass or go across (8)
I believe the answer is:
traverse
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">pass</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(traversing is a kind of passing)</span><br/ ><br/ >'<span class="explanation-format__original">go across</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for traverse that I've seen before include "Move across" , "Travel across or pass over" , "Cross sideways" , "Go across" , "Ski diagonally across (a slope)" .)