Crossword Genius

Lake —, reservoir in Arizona and Nevada formed by the Hoover Dam across the Colorado River (4)

Ross

I believe the answer is:

mead

(Other definitions for mead that I've seen before include "Old honey-based drink for dame" , "something to drink" , "US anthropologist, Margaret d. 1978" , "Drink made of fermented honey and water" , "Honey drink; lea" .)

I've seen this clue in The Mirror.
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