Crossword Genius

Coloured water? (3,3)

Ross

I believe the answer is:

red sea

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'coloured water?' is the definition.
'Red Sea' can be an answer for 'water?' (Red Sea is an example). I am not certain of the 'coloured' bit.

'coloured water?' is the wordplay.
'coloured' becomes 'red' (similar in meaning).
'water?' becomes 'sea' (the sea is water).
'red'+'sea'='RED SEA'

Can you help me to learn more?

(Other definitions for red sea that I've seen before include "It divided for Moses" , "Water between Africa and Asia" , "Water south of Sinai" , "Waters parted for 18 down" , "It parted to allow Moses and the exodus to cross" .)

I've seen this clue in the Evening Standard.
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