Not allowed to go to waste (4)
I believe the answer is:
used
'not allowed' is the definition.
The definition and answer can be both to do with social activities as well as being past participle verbs.
Perhaps they are linked in a way I don't understand?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for used that I've seen before include "Was treating" , "Took advantage of" , "Employed - exploited" , "Worn" , "not got directly" .)