Filed from 8 published puzzles

ATATIME

Set to 4 different clues across 8 published puzzles, most often “Simultaneously” — The New York Times, Thursday, 2 March 2006.

7 letters

Every clue on record, most used first

Simultaneously4 times
The New York Times — Thursday, 2 March 2006
Together2 times
The New York Times — Saturday, 8 May 2010
Orderly phrase that can follow one, two or threeonce
The New York Times — Thursday, 19 August 2004
Unit by unit, in successiononce
The New York Times — Sunday, 2 September 2001

Other answers to these clues

ASAGROUP8 letters
ASATEAM7 letters
ASAUNIT7 letters
ASONE5 letters
ENMASSE7 letters
HANDINHAND10 letters
INALL5 letters
INSYNC6 letters
INTANDEM8 letters
INUNISON8 letters
ONE3 letters
UNAPART7 letters