Adam and Eve's garden (4)
I believe the answer is:
eden
'adam and eve's garden' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for eden that I've seen before include "Perfect place" , "The most enchanting garden of all" , "(Biblical) paradise" , "The - - Project, Cornwall" , "PM 1955-56" .)