ASAD

Set to 2 different clues across 2 published puzzles, most often "___ tale's best for winter": Shak. — The New York Times, Sunday, 20 January 2008.

4 letters

Every clue on record, most used first

"___ tale's best for winter": Shak.once
The New York Times — Sunday, 20 January 2008
"That is ___ commentary ?"once
The New York Times — Tuesday, 30 May 2006