| SYSTEMIC | Relating to a complex whole |
| ALPHABET | A set of graphemes in a fixed order; or, rudiments in a system which combine to form a complex whole (8) |
| SYSTEM | A group or set of bodily organs, computer components, facts, parts, planets, stars etc working together as a complex whole (6) |
| SYNTHESIS | Putting together of elements to make up a complex whole (9) |
| SYNTHESISE | Combine into a complex whole |
| IMPORTUNITY | Insistence I am left with a complex whole (11) |
| SHOE | Item of footwear that can vary from a simple flip-flop to a complex boot |
| ABBOT | Superior books sent in to a complex (5) |
| SILVERBULLET | Magical solution to a complex problem |
| USNIC | Pertaining to a complex acid obtained from certain genera of lichens (5) |
| SYSTEMS | Complex wholes (7) |
| CLAUSE | A group of words with a subject and finite verb as part of a complex sentence / particular provision in a formal or legal document |
| ENZYME | A complex protein, such as a lyase, acting as a catalyst in a biochemical reaction (6) |
| ELECTRA | Choose a painter to capture a complex character (7) |
| SEAHORSE | With a complex courtship ritual, a marine fish that swims in a upright position, genus Hippocampus (3,5) |
| TESTCARD | A complex pattern used to calibrate a television transmission system (4,4) |
| RUMBA | A complex dance using an alcoholic spirit to a degree |
| COLOSSUS | In January 1943, Tommy Flowers, a Royal Post Office engineer, built this electronic machine to decipher a complex encryption system used by Hitler and the German High Command. |
| ABU | Mount ____, home to a number of Jain temples including Dilwara Temples, a complex of temples carved out of white marble |
| EROS | "__ Turannos": E.A. Robinson poem about a complex marriage |