Rearranged word (7)
I believe the answer is:
anagram
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">rearranged word</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for anagram that I've seen before include "Word formed by rearranging another word" , "Word arranging the letters of another" , "Letter puzzle" , "Hedonism for Sondheim" , "5 down is one" .)