HALFBAKED

Set to 2 different clues across 2 published puzzles, most often “Poorly developed, as an idea” — The New York Times, Wednesday, 12 January 2011.

9 letters

Every clue on record, most used first

Poorly developed, as an ideaonce
The New York Times — Wednesday, 12 January 2011
Like the answers to this puzzle's 12 asterisked clues?once
The New York Times — Thursday, 1 May 1997