Singers some paper reported (5)
I believe the answer is:
choir
'singers' is the definition.
(group of singers)
'some paper reported' is the wordplay.
'some paper' becomes 'quire' (quantity of paper - 25 or 24 sheets).
'reported' shows a homophone (sound like).
'quire' is a homophone of 'CHOIR'.
(Other definitions for choir that I've seen before include "Vocalists in group" , "set of singers" , "People in church" , "Large group of singers" , "warblers" .)