Immediately following (4)
I believe the answer is:
next
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">immediately following</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for next that I've seen before include "Succeeding" , "The one following or adjacent" , "Coming nearest in order - come, please!" , "Coming nearest in time or sequence" , "Following in sequence" .)