Black Sabbath vocalist heard Kylie Minogue, say (6)

I believe the answer is:

aussie

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'kylie minogue say' is the definition.
(I know that Kylie Minogue is Aussie)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for aussie that I've seen before include "Adelaide native?" , "One from down under" , "Someone from Sydney? (slang)" , "Antipodean native, informally" , "Briefly and informally, a man from Down Under" .)

I've seen this clue in The Telegraph.

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