Large deposit returned in class (8)
I believe the answer is:
generous
'large' is the definition.
(similar in meaning)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for generous that I've seen before include "Magnanimous" , "Bountiful, unselfish" , "Kind towards others" , "More than adequate" , "Beneficent, perhaps to a fault" .)