Model gets signed off (6)
I believe the answer is:
design
'model' is the definition.
(thesaurus)
'signed off' is the wordplay.
'off' is an anagram indicator.
'signed' with letters rearranged gives 'DESIGN'.
'gets' is the link.
(Other definitions for design that I've seen before include "Devise, create, make out a plan" , "Purpose, pattern" , "Aim -- decorative pattern" , "Devise, dreate, make out a plan" , "Preliminary sketch or plan" .)