Not extreme (8)
I believe the answer is:
moderate
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">not extreme</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for moderate that I've seen before include "Average in amount" , "Unextreme" , "Average, middle rate" , "Become less extreme" , "Read tome (anag) - unexceptional" .)