"In ... did Kubla Khan / a stately pleasure-dome decree" (Coleridge) (6)

I believe the answer is:

xanadu

(Other definitions for xanadu that I've seen before include "Imaginary idyll" , "Kubla Khan's capital as in Coleridge's poem" , "Place in poem by Coleridge" , "Imaginary wonderful place" , "'In . . . . . . did Kubla Khan / a stately pleasure-dome decree' (Coleridge)" .)

I've seen this clue in The Irish Times.

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