Approve, sanction (6)
I believe this is a double definition.
'approve' is the first definition.
(I've seen this before)
'sanction' is the second definition.
(I've seen this in another clue)
(Other definitions for ratify that I've seen before include "Give formal approval to" , "Authorise" , "Authenticate" , "OK" , "Sign or give formal consent" .)
I believe this clue is a double definition.
'approve' is the first definition.
(endorse can mean to approve or support)
'sanction' is the second definition.
(I know that endorse is a more specific form of sanction)
(Other definitions for endorse that I've seen before include "Uphold" , "'Approve of, back (7)'" , "Give support or approval to" , "Approve or underwrite" , "Put penalty points on (a driving licence)" .)