AREWEALONE

Set to 2 different clues across 2 published puzzles, most often “Exobiologist's query” — The New York Times, Saturday, 22 May 2010.

10 letters

Every clue on record, most used first

Exobiologist's queryonce
The New York Times — Saturday, 22 May 2010
Conspirator's cautious conversation starteronce
The New York Times — Saturday, 25 October 2008