Nice Maoris represented Pacific region (10)
I believe the answer is:
micronesia
'pacific region' is the definition.
(I've seen this before)
'nice maoris represented' is the wordplay.
'represented' is an anagram indicator.
'nice'+'maoris'='nicemaoris'
'nicemaoris' anagrammed gives 'MICRONESIA'.
(Other definitions for micronesia that I've seen before include "Group of Pacific islands" , "Western Pacific island group" , "part of Pacific" , "Pacific lands" , "a far-off place" .)