Diva (5,5)
I believe the answer is:
prima donna
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">diva</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that diva can be written as prima donna)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for prima donna that I've seen before include "(Over-sensitive) leading lady" , "Top female singer" , "temperamental sort" , "Leading lady, proverbially temperamental" , "opera star - with 2d" .)