Making changes to get a morning finish (8)

I believe the answer is:

amending

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'making changes to' is the definition.
I can't tell whether this definition defines the answer.

'get a morning finish' is the wordplay.
'get' is a charade indicator (letters next to each other).
'a morning' becomes 'am' (as in en:00 AM).
'finish' becomes 'ending' (I've seen this before).
'am' next to 'ending' is 'AMENDING'.

Can you help me to learn more?

(Other definitions for amending that I've seen before include "Modifying" , "Correcting" , "reforming" , "Altering for the better" , "Changing situation" .)

I've seen this clue in The Irish News.

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