Girl back in Oriental island (5)

I believe the answer is:

elsie

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This could be a double definition.

'girl' is the first definition.

'back in oriental island' is the second definition.
The definition suggests a singular noun which matches the answer.

Can you help me to learn more?

(Other definitions for elsie that I've seen before include "woman" , "Female name; rhymes with London football team" , "Girl's name" , "Name for girl" , "Lady" .)

I've seen this clue in The Globe and Mail.

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