"Clair de Lune" composer (7)
I believe the answer is:
debussy
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">clair de lune composer</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for debussy that I've seen before include "Note-writer" , "Claude -, Fr. composer" , "Clair de Lune composer" , "Claude, impressionist composer" , "Claude -, C. nineteen-twenty French composer" .)