Approved (6)
'approved' is the definition.
(endorsing is a kind of approving)
This is the entire clue.
(Other definitions for endorsed that I've seen before include "Publicly approved" , "Gave approval to" , "Signed one's name to certify" , "Given public approval" , "Approved and backed" .)
'approved' is the definition.
('okay' can be a synonym of 'approve')
This is all the clue.
(Other definitions for okayed that I've seen before include "Sanctioned" , "Authorised" , "Given the go-ahead" , "Informally approved and agreed" , "Gave informal approval" .)
'approved' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for signed that I've seen before include "Autographed" , "Inscribed - endorsed" , "Authorised (in writing)" , "Wrote one's name" , "Put one's name to" .)
'approved' is the definition.
('ok' can be a synonym of 'approve')
This is the entire clue.
(Another definition for oked that I've seen is " Given sanction".)