Former PM’s idyllic garden (4)

I believe the answer is:

eden

I believe this clue is a double definition.

'former pm's' is the first definition.
(Anthony Eden, UK prime minister 1955-1957)

'idyllic garden' is the second definition.
(I've seen this in another clue)

(Other definitions for eden that I've seen before include "In need of a great garden" , "The first garden" , "Idyllic garden" , "Delightful place" , "Biblical garden" .)

I've seen this clue in The Times.

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