| MANDATORY | Describing an action or procedure which has to be done, because it is a rule or a law (9) |
| EXAMPLE | Something characteristic of its kind or illustrating/explaining a rule; or, a person worthy of imitation (7) |
| EURASIA | Where A Boost For All is a rule every student forsakes (7) |
| PENTHOUSE | A select residence which has to be open then shut for an Easterner (9) |
| SWAY | Rhythmical motion back and forth, side to side or to and fro; control, influence, power or rule; or, a hazel rod laid to secure thatch (4) |
| LASTGASP | Describing an action done immediately before a defeat or end of a contest (4,4) |
| MORALOBLIGATION | Something that must be done because not doing it would be wrong |
| ADHERENCE | Faithful attachment to the rules, or a sticking together (9) |
| ADVERB | Word describing an action (6) |
| NECESSARYEVIL | Something unpleasant which has to be done (9,4) |
| TWINKLE | ... and what it does because it is a little star (7) |
| SMILES | Grins because it is a long way in a ship (6) |
| DENIM | Material which has to be mined for (5) |
| LINEAR | Lear gets in because it is a straight line (6) |
| BOOK | Record of bets; set of rules; or, a number of pages, stamps, tickets or fabric swatches bound together (4) |
| DOUBLESTANDARDS | Unequally applied rules, or a hint to interpreting the starred clues' answers |
| 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) |
| ORDINANCE | In North America, a rule or law enacted by a municipal authority (9) |
| PRESCRIBE | To lay down as a rule or directive (9) |
| BREACHING | Breaking a rule or law (9) |
