Mozart's middle name (7)
I believe the answer is:
amadeus
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mozart's middle name</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 amadeus that I've seen before include "Play about Mozart (Shaffer)" , "Wolfgang -- Mozart" , "Mozart's second name" , "Mozart play/film" , "Biopic" .)