Breaking cups, restless female artists (12)

I believe the answer is:

sculptresses

I'm a little stuck... Click here to teach me more about this clue!

'female artists' is the definition.
'sculptresses' can be an answer for 'artists' (sculptress is a kind of artist). I am not sure about the 'female' bit.

'breaking cups restless' is the wordplay.
'breaking' indicates an anagram.
'cups'+'restless'='cupsrestless'
'cupsrestless' anagrammed gives 'SCULPTRESSES'.

Can you help me to learn more?

I've seen this clue in The Times.

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