Prosperous container business (4-2-2)
I believe the answer is:
well-to-do
'prosperous' is the definition.
(synonyms)
'container business' is the wordplay.
'container' becomes 'well' (well is a kind of container).
'business' becomes 'to-do' (both can mean commotion).
'well'+'todo'='WELL-TO-DO'
(Other definitions for well-to-do that I've seen before include "Fairly wealthy" , "Rich; old towel (anag.)" , "Affluent" , "Financially comfortable" , "Quite wealthy" .)