Answer: candlefishes

AnswerCrossword Clue
candlefishesCANDLEFISH, a marine fish, allied to the smelt, found on the north Pacific coast, aka eulachon, so named because it is so oily that, when dried, it may be used as a candle, by drawing a wick through it
candlefishesA small, edible marine fish with oily flesh, occurring on the west coast of North America