CYGNET

Set to 2 different clues across 4 published puzzles, most often “Young swan” — The New York Times, Wednesday, 12 September 2007.

6 letters

Every clue on record, most used first

Young swan3 times
The New York Times — Wednesday, 12 September 2007
What the ugly duckling really wasonce
The New York Times — Friday, 12 February 2010