Crossword Genius

Gray's forename? (4)

Ross

I believe the answer is:

gary

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

'forename?' is the definition.
Both the definition and answer are singular nouns.
Maybe there's a link between them I don't understand?

'gray's' is the wordplay.
'gray' can be anagrammed to 'GARY'.
However, I am not clear how this is indicated.

Can you help me to learn more?

(Other definitions for gary that I've seen before include "Boy's name -- Indiana city" , "Mr" , "34a [MAN]" , "- Cooper, US actor" , "-, Indiana; - Cooper" .)

I've seen this clue in the Evening Standard.
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