In which paperwork is sorted by folders (7)
I believe the answer is:
origami
'in which paperwork is sorted by folders' is the definition.
The definition suggests a singular noun which matches the answer.
This is the entire clue.
Can you help me to learn more?
(Other definitions for origami that I've seen before include "Japanese paper-folding art" , "Making artistic shapes out of paper" , "Japanese art of folding paper into decorative shapes" , "US record label" , "newspaper folded?" .)