The most common and most likely answer to this crossword clue is the 9 letter word OVERTURES
I've seen this crossword clue in The Times
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More clues leading to the result OVERTURES
Buddy explains!

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 OVERTURES mean?
OVERTURES noun- An opening; a recess or chamber.
- Disclosure; discovery; revelation.
- (often in plural) An approach or proposal made to initiate communication, establish a relationship etc.
- A motion placed before a legislative body, such as the General Assembly of the Church of Scotland.
- A musical introduction to a piece of music.