Musical work from person at academy (6)
I believe the answer is:
sonata
'musical work' is the definition.
(type of musical composition)
'from person at academy' is the wordplay.
'from' indicates the answer is hidden within the clue.
'SONATA' can be found hidden inside 'person at academy'.
(Other definitions for sonata that I've seen before include "Chamber work" , "Music for a soloist" , "Eg, Beethoven's Kreutzer or Spring" , "Type of musical composition" , "Musical work for a solo instrument" .)