Ariel's new land (6)
I believe the answer is:
israel
'land' is the definition.
(I know that Israel is a land)
'ariel's new' is the wordplay.
'new' indicates an anagram.
'ariels' anagrammed gives 'ISRAEL'.
(Other definitions for israel that I've seen before include "Large bird cage" , "Middle-Eastern country" , "Go to this country for ale, sir" , "Jewish state" , "Serial set in Middle East state" .)