What is the answer to "Source of Andrew Carnegie's wealth" in the NYT Crossword?

The answer to the NYT Crossword clue "Source of Andrew Carnegie's wealth" is STEEL (5 letters).

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NYT

Source of Andrew Carnegie's wealth NYT Crossword Clue

Down clue · from the May 1, 2025 puzzle

Stuck on “Source of Andrew Carnegie's wealth” from the New York Times Crossword? Here is the verified answer:

Answer

STEEL

5 letters · Down · last seen May 1, 2025