Change of direction in Society - we have to adopt rule (6)
I believe the answer is:
swerve
'change of direction' is the definition.
(swerve is a kind of change of direction)
'society we have to adopt rule' is the wordplay.
'society' becomes 's' (common abbreviation in names of organisations).
'we have' becomes 'weve' (we've).
'to adopt' indicates putting letters inside.
'rule' becomes 'r' (legal abbreviation).
'weve' placed around 'r' is 'werve'.
's'+'werve'='SWERVE'
'in' acts as a link.
(Other definitions for swerve that I've seen before include "Turn sharply aside" , "Change course abruptly" , "Using spin" , "Deviate from the straight path" , "Suddenly go off course" .)