Pattern gets signed off (6)
I believe the answer is:
design
'pattern' is the definition.
(I know that pattern can be written as design)
'signed off' is the wordplay.
'off' is an anagram indicator.
'signed' is an anagram of 'DESIGN'.
'gets' is the link.
(Other definitions for design that I've seen before include "Singed (anag.)" , "Develop a drawing or model" , "project" , "Contrive" , "Prepare a plan for something to be made" .)