Crossword Genius

Undiluted sound in passage (6)

Ross

I believe the answer is:

strait

'passage' is the definition.
(I've seen this before)

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

'in' is the link.

(Other definitions for strait that I've seen before include "Narrow stretch of sea" , "Difficulty - strict" , "Narrow sort of traits (6)" , "Inlet" , "Narrow sorts of traits" .)

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