Beau ideal (7)
I believe the answer is:
paragon
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">beau ideal</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that beau ideal can be written as paragon)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for paragon that I've seen before include "Flawless model" , "Perfect type" , "Perfect diamond" , "Perfect embodiment of a concept" , "Role model" .)