Young family discarded wrappers (6)
I believe the answer is:
litter
'young' is the definition.
(thesaurus)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for litter that I've seen before include "dropped by a new dam, perhaps?" , "Rubbish strewn about the streets" , "Light bed - rubbish" , "Family" , "Cubs" .)