Crossword Genius

Put out in vessel when there's an instance (6)

Ross

I believe the answer is:

upturn

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'an instance' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.

'put out in vessel' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'in' means one lot of letters goes inside another.
'vessel' becomes 'urn' (urn is a type of container).
'put' with letters rearranged gives 'ptu'.
'ptu' inserted within 'urn' is 'UPTURN'.

'when there's' is the link.

Can you help me to learn more?

(Other definitions for upturn that I've seen before include "Rising trend" , "Improvement, better trend in business" , "Recovery" , "Improvement in fortunes" , "Improving trend" .)

I've seen this clue in The Globe and Mail.
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