Scraps clothes used before maturity (7)
I believe the answer is:
garbage
'scraps' is the definition.
('garbage' can be a synonym of 'scraps')
'clothes used before maturity' is the wordplay.
'clothes' becomes 'garb' (garb is a kind of clothes**).
'used before' says to put letters next to each other.
'maturity' becomes 'age' (I've seen this before).
'garb'+'age'='GARBAGE'
(Other definitions for garbage that I've seen before include "Litter" , "Food waste or trash" , "Pop group; rubbish" , "Worthless matter" , "'Refuse, rubbish (7)'" .)