| BUTTSIN | Interrupts only by rattling tins (5,2) |
| RAGTIME | When students can be seen rattling tins, making music (7) |
| CONNOTE | Have significance only by association, as with another word |
| EMPIRIC | Quack doctor known only by experience (7) |
| UNICORN | Creature caught only by a virgin maiden |
| WHISKER | Egg white stirrer? Only by a small margin (7) |
| DEEPCUT | Song known only by mega-fans |
| DIVORCE | Prior to 1857 in England, what could be obtained only by special Act of Parliament? (7) |
| ZEROSUM | ____ game, a situation in which one person wins only by causing another to lose (4,3) |
| ODYSSEY | Homeric epic in 24 books in which the wandering king of Ithaca returns home after 10 years to be recognised only by his faithful dog, Argos (7) |
| MYSTERY | From the Greek for "close the eyes", an ancient secret ceremony witnessed only by the initiated; an old word for a craft or a trade guild; an enigmatic person or thing; or, a novel, play etc based on |
| INJOKES | Pieces of humour appreciated only by a limited number of people (2,5) |
| JIGSAWS | Tools traditionally used to cut the interlocking shapes of dissectologists' puzzles of choice; or, things comparable, such as mysteries solved only by assembling various pieces of information (7) |
| PRIMENUMBER | Integer divisible only by itself and by 1 (5,6) |
| MARBLEDCRAYFISH | The only known decapod crustacean to reproduce only by parthenogenesis |
| ASIDE | Something spoken by an actor on stage intended to be heard only by the audience (5) |
| SWAN | Bird which was declared by Act of Parliament in 1483 to be owned only by England's monarch (4) |
| USERSFEE | Assessment paid only by those who benefit |
| ACE | Card that's taken only by a trump |
| ECHO | Classical nymph who spoke only by repetition |
