"Moon River" lyricist (6)
I believe the answer is:
mercer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">moon river lyricist</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for mercer that I've seen before include "Man of the cloth" , "Dealer in textile fabrics" , "Dealer in textiles or dry goods" , "Textile dealer (historical)" , "Supplier of fabrics" .)