Most attractive (9)
I believe the answer is:
prettiest
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">most attractive</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 prettiest that I've seen before include "Most attractive" , "Most charming" , "Most beautiful" .)