Filed from 2 published puzzles

UPTURN

Set to 2 different clues across 2 published puzzles, most often “Improvement” — The New York Times, Monday, 11 February 2002.

6 letters

Every clue on record, most used first

Improvementonce
The New York Times — Monday, 11 February 2002
Good news on Wall Streetonce
The New York Times — Saturday, 24 February 2001

Other answers to these clues

RALLY5 letters
RISE4 letters
UPGRADE7 letters
UPSWING7 letters