Crossword puzzle clue "word up group"

First word across in the first-ever crossword (1913) and the first of a dozen appearances of the word in this puzzle's grid, written word search-style (left, right, down, and diagonally) ... Can you f

Group within a group

Group within a group

Like people in a group hug, presumably (and a group hug involving Tributes #7, #8, and #11)

Rose group, but not a rosé group

Group within a group

One percent of a D.C. group--or the group itself

Group within a group