Morning finished, set right (7)
I believe the answer is:
amended
'set right' is the definition.
(I've seen this in another clue)
'morning finished' is the wordplay.
'morning' becomes 'am'.
'finished' becomes 'ended' ('end' can be a synonym of 'finish').
'am'+'ended'='AMENDED'
(Other definitions for amended that I've seen before include "Carried out reforms" , "Correct, improve" , "Put right" , "Corrected" , "Rectified" .)