Perfect society (6)
I believe the answer is:
utopia
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">perfect society</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 utopia that I've seen before include "Place of ideal perfection" , "Idyllic land" , "More's ideal world" , "place of bliss" , "Thomas More's perfect society" .)