Crossword Genius

Milk sugar (7)

Ross

I believe the answer is:

lactose

'milk sugar' is the definition.
(synonyms)

This is all the clue.

(Other definitions for lactose that I've seen before include "A sugar present in milk" , "milky sweetener" , "Sugar found in milk" , "Part of milk" , "Constituent of milk" .)

I've seen this clue in The Independent, The Sunday Times, The Guardian, the Newsday and The Times.
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