HAZMAT

Set to 2 different clues across 2 published puzzles, most often “Dangerous cargo” — The New York Times, Monday, 21 April 2008.

6 letters

Every clue on record, most used first

Dangerous cargoonce
The New York Times — Monday, 21 April 2008
Dangerous cargo, in modern lingoonce
The New York Times — Wednesday, 18 February 2004