The most common and most likely answer to this crossword clue is the 9 letter word AMENDMENT
I've seen this crossword clue in Independent
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More clues leading to the result AMENDMENT
- Change the last word Democrat intended in speech
- Correction: staff finish off shift after noon
- Change the last word daughter expressed, heartlessly
- Man met end making revision
- Change the last word on workers in case of deficit
- Reform Act gutless, get better people involved
- A repair, by workers on time for a change
- Fix moving tandem with guys on board
- Alteration to document’s last point accepted by American soldiers over time
- When PM starts getting people tense, change
Buddy explains!

The straight part
We know that "Change" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case change = amendment.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does AMENDMENT mean?
AMENDMENT noun- An alteration or change for the better; correction of a fault or of faults; reformation of life by quitting vices.
- In public bodies, any alteration made or proposed to be made in a bill or motion that adds, changes, substitutes, or omits.
- Correction of an error in a writ or process.
- An addition to and/or alteration to the Constitution.
- That which is added; that which is used to increase or supplement something.