Idealistic reformer (7)
I believe the answer is:
utopian
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">idealistic reformer</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 utopian that I've seen before include "Impractically idealistic" , "ideal but unrealistic" , "Perfectionist reformer" , "Of an ideal existence" , "Ideal; imaginary" .)