Crossword Genius

Herod's son opposed father? (9)

Ross

I believe the answer is:

antipater

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'herod's son' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'opposed father?' is the wordplay.
'opposed' becomes 'anti' (similar in meaning).
'father?' becomes 'pater' (old-fashioned term for father).
'anti'+'pater'='ANTIPATER'

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