Top stop working on the back of incomplete pretext (6)
I believe the answer is:
hoodie
'top' is the definition.
(type of clothing top )
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for hoodie that I've seen before include "Sweatshirt with head-covering" , "Form of jacket; youth wearing one" , "'Uniform' often associated with ASBO offenders (variant spelling)" , "Crow; cowled youth" , "Youth's top" .)