Disney toon to inspire about half of crooner's rock album (7,6)

'disney toon to inspire' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'about half of crooner's rock album' is the wordplay.
I cannot quite see how this works, but
'about' could be 'c' (abbreviation for 'circa') and 'c' is present in the answer.
'of' could be 'o' and 'o' is found within the answer.
'rock' could be 'gem' and 'gem' is located in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?