Crossword Genius

One leaving Italian region, say, reflected resentment (7)

Ross

I believe the answer is:

umbrage

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'resentment' is the definition.
(I've seen this in another clue)

I cannot understand how the rest of the clue works.

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(Other definitions for umbrage that I've seen before include "In high dudgeon" , "Suspicion of injury" , "Take this to show offence" , "Offence, annoyance" , "Feeling of offence" .)

I've seen this clue in The Times.
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