Devises constitution involving society (5,2)
I believe the answer is:
makes up
'devises' is the definition.
('make up' can be a synonym of 'devise')
'constitution involving society' is the wordplay.
'constitution' becomes 'make-up' (synonyms).
'involving' means one lot of letters goes inside another.
'society' becomes 's' (common abbreviation in names of organisations).
'makeup' enclosing 's' is 'MAKES UP'.
(Other definitions for makes up that I've seen before include "Contrives" , "Invents" .)