Persepolis' land, today (4)
I believe the answer is:
iran
'persepolis' land today' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for iran that I've seen before include "Islamic republic on the Persian Gulf" , "Tehran's country" , "Persia today" , "Farsi-speaking country" , "Iraq's neighbour" .)