| Answer | Crossword Clue |
|---|---|
| PROTOCOL | Rules of etiquette. |
| DONTS | Certain rules of etiquette. |
| SOLECIST | He breaches rules of grammar or etiquette |
| formally | In accordance with the rules of convention or etiquette |
| formality | The rigid observance of rules of convention or etiquette |
| formalities | The rigid observance of rules of convention or etiquette |
| etiquettes | ETIQUETTE, (French) the conventional rules of personal behaviour in polite society |
| NONOS | Some etiquette rules |
