- ENNEAD
- The Supreme Court, e.g., although that's not a law and maybe someone solving this is thinking of winning the presidency in 2020 and doing some court-packing?
- Complement of fingers after an accident, maybe?
- Sudoku grouping, e.g.
- Group of Twins?
- Ninesome
- Cluster of nine
- The Muses, for one
- Group of nine
- Baseball team, for example
- Supreme Court justices, e.g.
- The Supreme Court, for one
- Baseball team or the Supreme Court
- The Supreme Court or the Muses
- The Supreme Court, say
- The Muses, e.g.
- The Supreme Court is one
- Ball team, e.g.
- Set of nine
- Triple trio
- Not quite a decade
- Cycle of nine gods of Egypt.
- The number nine.
- A group of nine.
- Group, such as the Muses.
- Thalia, Clio et al.
- N.L. team
- Nonet
- A baseball team
- Mets or Cubs
- The planets in our solar system, once
- Nonet, for one
- Diamond group, e.g.
- Supreme Court, e.g.
- Supreme Court, for one
- The Supreme Court, e.g.
- Octad plus one
- Group of 112-Down
- Party of nine
- Santa's reindeer, counting Rudolph
- Group of nine things
- Nine-item group
- Baseball team or innings
- Three trios joined together
- Three trios
- Supreme Court or baseball team, e.g.
- Trio tripled
- The Muses, as a group
- 52-Down X 3
- Nonet kin
- Pittsburgh Pirates, e.g.