Where Pago Pago is (5)
I believe the answer is:
samoa
'where pago pago is' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for samoa that I've seen before include "South-west Pacific nation" , "Pacific islands state" , "SW Pacific island chain" , "Pacific island nation, capital Apia" , "Group of islands in the South Pacific" .)