Short moment (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">short moment</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 instant that I've seen before include "Jiffy" , "Occurring immediately, like some fast food" , "Short time, of the current month" , "Short time; immediate" , "The blink of an eye" .)
(Other definitions for second that I've seen before include "Small fraction of a day" , "Instant - support" , "awarded the silver medal?" , "Helper in the ring" , "Short-lived" .)