The most common and most likely answer to this crossword clue is the 9 letter word OVERTURNS
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More clues leading to the result OVERTURNS
- Reverses through, then goes
- Rescinds remaining acts
- Upsets Open University, with grants being regularly cut
- Spills from open vessels
- Upsets remaining performers
- Six deliveries spin. Stokes is upset
- Upsets open containers
- Upsets open vessels
- Capsizes plain vessels full of tea, perhaps
- Spills open coffee containers
Buddy explains!

The straight part
We know that "is upset" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case is upset = overturns.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 OVERTURNS mean?
OVERTURNS verb- To turn over, capsize or upset.
- To overthrow or destroy.
- To reverse (a decision); to overrule or rescind.
- To diminish the significance of a previous defeat by winning; to make a comeback from.