Agreed to change society for tons raising no objection? (9)
I believe the answer is:
contented
'agreed' is the definition.
Both the answer and definition are adjectives. Perhaps there's an association between them I don't understand?
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for contented that I've seen before include "Not decent (anag) - cheerful" , "'Satisfied, relaxed and happy (9)'" , "Feeling satisfied" , "Satisfied with things as they are" .)