Old sails and stuff by a Michigan craft (7)
I believe the answer is:
origami
'craft' is the definition.
(I have seen 'Japanese craft' mean 'origami' so perhaps 'craft' could also mean 'origami')
'old sails and stuff by a michigan' is the wordplay.
'old sails' becomes 'rig' (I've seen this in other clues. I am not sure about the 'old' bit.).
'and' becomes 'too'.
'stuff' says to take the centre (I've seen 'stuffing' mean this).
'by' is a charade indicator (letters next to each other).
'michigan' becomes 'mi' (state letters).
The middle of 'too' is 'o'.
'rig' after 'o' is 'orig'.
'orig'+'a'+'mi'='ORIGAMI'
Can you help me to learn more?
(Other definitions for origami that I've seen before include "Making artistic shapes out of paper" , "Oriental art of paper folding" , "that's folding" , "It's crafty folding" , "Japanese art form -- I'm a giro (rev)" .)