Music school getting zero possibly (7)
I believe the answer is:
scherzo
'music' is the definition.
(scherzo is a kind of music)
'school getting zero possibly' is the wordplay.
'school' becomes 'sch' (abbreviation).
'getting' says to put letters next to each other.
'possibly' indicates anagramming the letters.
'zero' with letters rearranged gives 'erzo'.
'sch'+'erzo'='SCHERZO'
(Other definitions for scherzo that I've seen before include "Fast movement (mus.)" , "Playful musical movement" , "Light, playful composition" , "Light symphonic movement" , "One often with trio" .)