ALKYL
Set to 2 different clues across 2 published puzzles, most often “___ halide” — The New York Times, Saturday, 27 April 2002.
5 letters
Every clue on record, most used first
- ___ halideonce
The New York Times — Saturday, 27 April 2002
- Hydrocarbon grouponce
The New York Times — Friday, 16 June 1995