| Answer | Crossword Clue |
|---|---|
| CASTIRON | Inflexible, as some rules |
| UNWRITTEN | Customary, as some rules |
| STRICT | Inflexible about rules |
| STRICT | Inflexible about the rules |
| DONTS | Some rules |
| DRESSCODES | Some school rules |
| RIGID | Like some rules |
| NONOS | Some etiquette rules |
| EDICTAL | Like some rules |
| ORALLAW | Some unwritten rules |
| NONOS | Some kindergarten rules |
| BENT | Like some ears and rules |
| referees | An official who watches a game or match closely to ensure that the rules are adhered to and (in some sports) to arbitrate on matters arising from the play |
