What’s the Mystery Behind an Empty or Veiled One? Solve the Crossword Clue Now!

What’s the Mystery Behind an Empty or Veiled One? Solve the Crossword Clue Now! - THREAT
One can be empty or veiled

Endanger
Menace
Intimidation
Warning
Hazard
Peril
Imminent danger
Promise of trouble
Risk
Ominous sign

THREAT