Moderated (8)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">moderated</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for tempered that I've seen before include "Made hard through heating and cooling" , "watered down" , "Heat-treated" , "See 7" , "Strengthened" .)