Land using stone passage we hear (7,4)

I believe the answer is:

emerald isle

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'land' is the definition.
(I know that Emerald Isle is a island)

'using stone passage we hear' is the wordplay.
'using stone' becomes 'emerald' (I can't justify this - if you can you should give a lot more credence to this answer).
'passage' becomes 'aisle' (aisle can mean a path or passageway).
'we hear' shows a homophone (sound like).
'aisle' is a homophone of 'isle'.
'emerald'+'isle'='EMERALD ISLE'

Can you help me to learn more?

(Other definitions for emerald isle that I've seen before include "where one might get whiskey" , "divided country" , "Name for Ireland" , "jewel of a place" .)

I've seen this clue in The Times.

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