Mozart symphony about to be returned after Judge finished with it (7)
I believe the answer is:
jupiter
'mozart symphony' is the definition.
(I've seen this in another clue)
'to be returned after judge finished with it' is the wordplay.
'to be returned' becomes 'iter' (I can't explain this - if you can you should give a lot more credence to this answer).
'after' says to put letters next to each other.
'judge' becomes 'J' (abbreviation for judge).
'finished' becomes 'up' (eg 'time's up' means the time is finished).
'with it' means one lot of letters go next to another.
'j'+'up'='jup'
'iter' put after 'jup' is 'JUPITER'.
'about' is the link.
Can you help me to learn more?
(Other definitions for jupiter that I've seen before include "celestial body" , "to which Tom Towers contributed" , "Large planet" , "A planet; Trollope's all-powerful newspaper" , "Piece of Holst" .)