"Der Freischutz" composer (5)
I believe the answer is:
weber
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">der freischutz composer</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for weber that I've seen before include "Carl Maria von ---, composer; Max ---, sociologist" , "German musician" , "Composer of Der Freischutz, d. 1826" , "German composer of Der Freischutz" , "Unit of magnetic flux, composer" .)