Paper-folding skill (7)
I believe the answer is:
origami
'paper-folding skill' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for origami that I've seen before include "Japanese art of folding or tearing paper" , "Art of crafting objects from paper" , "Japanese art of folding paper into decorative shapes" , "It's crafty folding" , "The folding of sheets" .)