She played with her lurid poncho, source of a long-standing resentment (4,2,3,8)

I believe the answer is:

chip on her shoulder

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'she played with her lurid poncho source of a long-standing resentment' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'she played with her lurid poncho' is the wordplay.
'played with' indicates an anagram (letters playing around).
'her'+'lurid'+'poncho'='herluridponcho'
'she' with its letters anagrammed with 'herluridponcho' can make 'CHIP ON HER SHOULDER'.

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I've seen this clue in the Sydney Morning Herald.

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