Immediately after (4)
I believe the answer is:
next
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">immediately after</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 next that I've seen before include "Nearest following" , "Closest" , "Neighbour lives in the house . . . . door" , "shop" , "Immediately following in time or order" .)