Land of mysterious machinations (5)
I believe the answer is:
china
'land' is the definition.
(China is an example)
'of mysterious machinations' is the wordplay.
'of' indicates the answer is hidden within the clue.
'CHINA' can be found hidden inside 'mysterious machinations'.
(Other definitions for china that I've seen before include "Fine white ceramic" , "Londoner's friend" , "Dresden, perhaps" , "porcelain cups?" , "Dishes, vases or ornaments" .)