Bitterness and resentment (8)

I believe the answer is:

acrimony

(Other definitions for acrimony that I've seen before include "'Bitterness, acerbity (8)'" , "Rancour, bad blood" , "Asperity" , "Bitterness of manner or words" , "Bitterness, ill feeling" .)

I've seen this clue in The Mirror.

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