Going by (7)
I believe the answer is:
passing
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">going by</span>' is the definition.<br/ ><span class="explanation-format__explanation">('pass' can be a synonym of 'go by')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for passing that I've seen before include "Short-lived - death" , "Overtaking" , "Casual - death" , "Ephemeral" .)