Crossword Genius

Its heavy but will take first place (4)

Ross

I believe the answer is:

lead

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'first place' is the definition.
(I've seen this in another clue)

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

Can you help me to learn more?

(Other definitions for lead that I've seen before include "spearhead" , "Church windows include this" , "Accompany to show the way" , "Chemical element, symbol Pb" , "Take a position in front" .)

I've seen this clue in The Irish News.
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