Crossword Genius

Perhaps McCartney is gender fluid? (8)

Ross

I believe the answer is:

designer

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

'perhaps mccartney' is the definition.
I can't tell whether this definition defines the answer.

'is gender fluid?' is the wordplay.
'fluid?' is an anagram indicator (I've seen 'fluid' mean this).
'is'+'gender'='isgender'
'isgender' anagrammed gives 'DESIGNER'.

Can you help me to learn more?

(Other definitions for designer that I've seen before include "Person who creates or fashions things such as clothes" , "Resigned to being the creator, of fashion say" , "Originator" , "inventor" , "Architect or couturier, say" .)

I've seen this clue in The Guardian.
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