Sing in Tokyo, delightfully (5)

I believe the answer is:

yodel

'sing' is the definition.
(yodeling is a kind of singing)

'in tokyo delightfully' is the wordplay.
'in' says the answer is hidden in the clue.
'YODEL' is hidden within 'tokyo delightfully'.

(Other definitions for yodel that I've seen before include "Sing in high trilling tone like Swiss mountaineer" , "Loftily call" , "Sing like the Lonely Goatherd?" , "Sing (Swiss style)" , "Swiss warble" .)

I've seen this clue in The Times.

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