Crossword clue: of or pertaining to a chain of islands between alaska and kamtchatka; also, designating these islands.

The most common answer is aleutian (8 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

aleutian 8 letters web-def

a member of the people inhabiting the Aleutian Islands and southwestern Alaska

aleutic 7 letters web-def

Of or pertaining to a chain of islands between Alaska and Kamtchatka; also, designating these islands.