Filed from 3 published puzzles

DICTUM

Set to 3 different clues across 3 published puzzles, most often “Judicial assertion” — The New York Times, Monday, 11 February 2008.

6 letters

Every clue on record, most used first

Judicial assertiononce
The New York Times — Monday, 11 February 2008
Pronouncementonce
The New York Times — Thursday, 30 June 2005
Judicial declarationonce
The New York Times — Friday, 20 October 1995

Other answers to these clues

EDICT5 letters
UKASE5 letters