In star, Rocky Hill, we have a modernist (9)

I believe the answer is:

innovator

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'we have a modernist' is the definition.
I can't tell whether this definition defines the answer.

'in star rocky hill' is the wordplay.
'star' becomes 'nova' (nova is a kind of star).
'rocky hill' becomes 'tor' (I've seen this in another clue).
'in'+'nova'+'tor'='INNOVATOR'

Can you help me to learn more?

(Other definitions for innovator that I've seen before include "Person who devises a new way of doing things" , "Maker of change" , "Pioneer" , "Fresh thinker" , "new ideas man" .)

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

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