Story in instalments (6)
I believe the answer is:
serial
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">story in instalments</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 serial that I've seen before include "In a sequence" , "Continuous story set in Israel" , "Program that's often on" , "Set of TV shows" , "Of continuous nature - maybe a killer" .)