Novel content
I believe the answer is:
prose
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">novel content</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for prose that I've seen before include "Ordinary writing" , "Gossipy talker" , "Non-verse" , "Normal written language" , "Not poetry" .)