Go, leave (6)
I believe the answer is:
depart
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">go</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">leave</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(departing is a kind of leaving)</span><br/ ><br/ ></span>
(Other definitions for depart that I've seen before include "Leave (6)" , "Stray" , "make tracks" , "Prated (anag.)" , "Leave, vanish" .)