The Clue
Hazardous obstruction (4 letter answer)
The Answer
REEF
Tags
Notes
The answer REEF is seen frequently, appearing about once every 120 puzzles.
Related Clues
Coral ___
Riffle
Shoal
Atoll protector
Bikini feature
Coral formation
Coral ridge
Great Barrier ___
Island protector
Lagoon perimeter
Lower a spar
Marine hazard
Menace for mariners
Nautical danger
Navigation hazard
Offshore hazard
Reduce a sail
Sailing hazard
Sailor's peril
Sand ridge
Scuba venue
Ship hazard
Shorten sail
Snorkeling locale
Snorkeling site
Snorkeling spot
Trim a sail
Wreck site
"Donovan's ___": 1963 film
Rocky ridge offshore
Sea-diving area
Shipwreck cause, sometimes
Site of many a shipwreck
The Keys, essentially
Wreck of the Hesperus cause
Definition
REEF as a noun:
1. a submerged ridge of rock or coral near the surface of the water
2. (Witwatersrand, Rand, Reef) = a rocky region in the southern Transvaal in northeastern South Africa; contains rich gold deposits and coal and manganese
REEF as a verb:
1. lower and bring partially inboard; "reef the sailboat's mast"
2. roll up (a portion of a sail) in order to reduce its area
3. reduce (a sail) by taking in a reef