DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   arranger
       n 1: a person who brings order and organization to an
            enterprise; "she was the organizer of the meeting" [syn:
            organizer, organiser, arranger]
       2: a musician who adapts a composition for particular voices or
          instruments or for another style of performance [syn:
          arranger, adapter, transcriber]