Changes as the morning finishes (6)
I believe the answer is:
amends
'changes' is the definition.
(amending is a kind of changing)
'the morning finishes' is the wordplay.
'the morning' becomes 'am' (as in 12:00 AM).
'finishes' becomes 'ends' ('end' can be a synonym of 'finish').
'am'+'ends'='AMENDS'
'as' is the link.
(Other definitions for amends that I've seen before include "Make these to atone for wrong done" , "It is made in reparation" , "Corrects" , "Make these to atone for injuries or loss caused" , "Fixes" .)