The answers to the clues below will have something, though not obvious, in common.

1. Result of a threat that proves to be unfounded
2. Geometric figure between 90 and 180 degrees
3. Simile cousin of  "Like falling off a log"
4. Success and eventual failure - as of a civilization
5. Dinner's ready, so _ _ _ _    _ _ _!
6. Cause revulsion
7. Legally mandated home detention
8. Roughhouse, play pranks - with "around"
9. Within easy reach
10. Create a commotion
11. Take a quick look

Answers:

1. False alarm
2. Obtuse angle
3. As easy as pie
4. Rise and fall
5. Let's eat
6. Nauseate
7. House arrest
8. Horse around
9. Close at hand
10. Cause a stir
11. Glimpse at

What the answers have in common:

HINT: It involves hidden words.

Answer:

Each of the answer words or phrases conceals the word SEA. 

Credit: Pancho Harrison
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