Scottish isle in Tchaikovsky etude (4)

I believe the answer is:

skye

'scottish isle' is the definition.
(I've seen this in another clue)

'in tchaikovsky etude' is the wordplay.
'in' says the answer is hidden in the clue.
'SKYE' is hidden in the letters of 'tchaikovsky etude'.

(Other definitions for skye that I've seen before include "Scottish location" , "Home of the Cuillin mountains" , "Hebridean island close to mainland" , "Scottish isle" , "Destination of a princely boat trip" .)

I've seen this clue in The Sun.

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