Young lad discarding fish skin (5)
I believe the answer is:
strip
'skin' is the definition.
(thesaurus)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for strip that I've seen before include "every football club needs" , "Take off clothing" , "Thin piece" , "Denude; long narrow piece of fabric" , "Team kit" .)