| QUADRIVIUM | A group of four liberal arts in mediaeval education (10) |
| MUSES | The nine goddesses of the liberal arts in Greek mythology (5) |
| ARE | It was art, in mediaeval times |
| QUADRANGLE | A group of four left in series of mountains in confined space (10) |
| DIEBENKORN | Richard ___, American painter and printmaker awarded the National Medal of Arts in 1991 |
| JOHNCLEESE | Comedian who co-founded the training film company Video Arts in 1972 |
| QUARTET | A piece of music for a group of four singers or instrumentalists (7) |
| TETRA | A group of four short fish |
| TETRAD | A group of four tarted up (6) |
| INNS | ___ of Court, group of four institutions responsible for legal education in England, established in the 14th Century (4) |
| BARBICAN | Outer defence of a walled city and a centre for performing arts in London |
| BLOCK | Group of four or more joined stamps; a rectangular portion of butter, chocolate or ice cream; or, a head-shaped mould for wigs (5) |
| GANG | _ of Four, breakaway group of four Labour politicians who founded the Social Democratic Party in 1981 (4) |
| YAP | Group of four islands in the Caroline Islands of the Pacific which were an important Japanese naval base in the Second World War (3) |
| CONDUCTUS | Take us on a tour in mediaeval music |
| AMERCES | Punishes with a fine (in mediaeval times) (7) |
| SQUIRE | In mediaeval times, a knight's attendant (6) |
| PAGE | Call for a boy in mediaeval dress (4) |
| PASTORALADDRESS | Message from father, or a son in mediaeval attire? (8,7) |
| MUSE | One of the goddesses of the arts in ancient Greece; also a British rock band (4) |