Always in the right to go back (6)
I believe the answer is:
revert
'go back' is the definition.
(thesaurus)
'always in the right' is the wordplay.
'always' becomes 'ever' ('ever' can be a synonym of 'always').
'in the' is an insertion indicator.
'right' becomes 'rt'.
'ever' put into 'rt' is 'REVERT'.
'to' is the link.
(Other definitions for revert that I've seen before include "Regress" , "Go back (to topic)" , "Go back to a previous state" , "Go back to former state or habit" , "Return to former state (6)" .)