Japanese craft fit with sails, following old comrade to Marseille (7)
I believe the answer is:
origami
'japanese craft' is the definition.
(I've seen this before)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for origami that I've seen before include "that's folding" , "Paper-folding skill" , "folding stuff?" , "Japanese paper-folding art" , "folding process" .)