Crossword Genius

Sturdy guy in drag, always taking the lead (3)

Ross

I believe the answer is:

gid

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'lead' is the definition.
Both the definition and answer are singular nouns.
Maybe there's an association between them I don't understand?

I don't understand how the rest of the clue works.

Can you help me to learn more?

I've seen this clue in The Times.
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