Archipelago, East Indian, with us all on the move (8,7)
I believe the answer is:
Here is my best explanation:
'archipelago' is the definition.
(Aleutian Islands is an example)
'east indian with us all on the move' is the wordplay.
'with' says to put letters next to each other.
'on the move' indicates anagramming the letters.
'eastindianusall' anagrammed gives 'ALEUTIAN ISLANDS'.