Narrow water, even in the sound (6)

I believe the answer is:

strait

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'narrow water' is the definition.
'strait' can be an answer for 'water' (strait is a kind of water). I'm not sure about the 'narrow' bit.

'even in the sound' is the wordplay.
'even' becomes 'straight' (similar in meaning).
'in the sound' shows a homophone (sound like).
'straight' sounds like 'STRAIT'.

Can you help me to learn more?

(Other definitions for strait that I've seen before include "Inlet" , "Catch in a trap" , "Difficult position" , "Narrow sort of traits (6)" , "-- -laced (prudish)" .)

I've seen this clue in The Times.

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