| FORMALITIES | Requirements of etiquette or custom |
| DERIGUEUR | Required by etiquette or custom |
| FORMALITY | Requirement of etiquette (9) |
| PROTOCOL | From the Greek for "glued-on descriptive first leaf of a manuscript", an original minute of an agreement; a body of diplomatic etiquette; or, any code of correct conduct (8) |
| OBSERVANCE | The practice of watching, paying attention to or keeping in view the requirements of a custom, law, rite or ritual; or, noticing generally (10) |
| PUNCTILIO | From the Latin for "point", a word for a fine or petty point of conduct, etiquette or procedure, about which one is particularly scrupulous (9) |
| HABIT | Word for apparel, attire or dress originally, later mental constitution; or, a settled disposition or custom (5) |
| SCONCE | Ornamental wall bracket for a candle, flaming torch or modern light; a penalty at Oxford University for breaching drinking etiquette; or, an earthwork defending a castle gate (6) |
| TRIBAL | Type of chief or custom |
| WOOING | Seeking the support or custom of |
| UPHOLD | Maintain or sustain a practice or custom (6) |
| RELIC | An object or custom that has survived the passage of time (5) |
| UNORTHODOXY | The quality of being unconventional in belief, behaviour or custom (11) |
| TRADE | Clientele or custom; commerce; commodities for barter; or, a craft (5) |
| FINISHINGSCHOOL | Where one might learn etiquette ... or a hint to the answers to starred clues |
| BARN | Farm building one is exasperatedly said to be born in when said person is lacking proper etiquette or the ability to close a door (4) |
| TRIBE | A group of people of the same language, race or customs (5) |
| IZE | Suffix with formal or custom |
| INSTITUTION | Established law or custom |
| INVETERATE | Firmly established by usage or custom |
