McCartney of fashion (6)
I believe the answer is:
stella
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mccartney of fashion</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for stella that I've seen before include "girl!" , "Girl's name meaning star" , "Swift alias for Esther" , "lady?" , "Swift favourite" .)