Prima donna (4)
I believe the answer is:
diva
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">prima donna</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for diva that I've seen before include "A female opera singer" , "Great singer" , "Top opera singer" , "fat lady?" , "High-maintenance opera singer?" .)