Contributor to paper on doubtful concerto movement? (5)
I believe the answer is:
rondo
'concerto movement?' is the definition.
'rondo' can be an answer for 'movement?' (I have seen 'Repetitive movement' mean 'rondo' so perhaps 'movement' could also mean 'rondo'). I also know that 'concerto' relates to this answer.
'contributor to paper on doubtful' is the wordplay.
'RONDO' is hidden within the letters.
However, I am unsure how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for rondo that I've seen before include "Piece in the form of a sonata's last movement, say" , "Music with repeated refrains" , "Music form with recurring theme" , "part of a sonata" , "Repetitive movement" .)