Submerged coral reefs

BOILERS is a 7-letter word and the answer to the crossword clue "Submerged coral reefs" This descriptive clue hints at a defining characteristic or typical use of the answer rather than stating it outright. Crossword solvers often find that descriptive clues come into focus once a few crossing letters are already in place. BOILERS is a popular grid entry thanks to its useful combination of common letters.

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