How to Make It
Bring cranberries, brown sugar, and orange juice to a boil in a large saucepan over medium-high, stirring often. Reduce heat to medium-low, and simmer, stirring occasionally, until cranberries pop and mixture thickens, 12 to 15 minutes. Remove from heat, and cool to room temperature, about 30 minutes.
Stir in clementines, pineapple, celery, orange-flavored liqueur, orange zest, and walnuts. Transfer to a serving bowl; cover and chill 4 to 24 hours.