Filed from 2 published puzzles

TWOON

Set to 2 different clues across 2 published puzzles, most often “Pressure situation for a pitcher” — The New York Times, Sunday, 5 April 2009.

5 letters

Every clue on record, most used first

Pressure situation for a pitcheronce
The New York Times — Sunday, 5 April 2009
Runners at the corners, say, in baseballonce
The New York Times — Sunday, 10 December 2006