Chapter (7)
I believe the answer is:
episode
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">chapter</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 episode that I've seen before include "from longer work" , "Part of a broadcast serial, say" , "Instalment of broadcast serial" , "Incident in a story or part of a serial" , "Instalment; event" .)