Later in time (5)
I believe the answer is:
after
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">later in time</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 after that I've seen before include "In honour of" , "Pursuing" , "Post, later than" , "Coming later in time" , "Behind; seeking" .)