| CHEQUER | Pattern of squares of different colours |
| DIAGONAL | From the Greek for "through", a line joining non-adjacent vertices of a square or other polygon; a slanting row of squares of the same colour on a chessboard; or, the bias of cloth (8) |
| CHEQUERED | Marked in squares of different colours (9) |
| CHEQUERWORK | A pattern using alternating squares of different colours |
| GRID | Pattern of squares on which to write answers to crossword clues; or, linked with "reference", a series of numbers and letters indicating the locations of places on a map (4) |
| CHECKED | having a pattern of squares |
| CHECK | Pattern of squares on gingham cloth or a chessboard (5) |
| GINGHAM | Material with pattern of squares (7) |
| CHECKUP | Pattern of squares ahead needs thorough examination (5-2) |
| CHEQUE | Endless pattern of squares on paper that may be signed (6) |
| CHESS | From the Persian for "king", a game from whose name a word for a pattern of squares derives (5) |
| VARIEGATION | Process of applying patches of different colours |
| ONYX | Semi-precious variety of the silica mineral agate comprising alternating bands of different colours (4) |
| MARL | Word used to describe a yarn with a melange of two or more plies of different colours, similar to heathered wool (4) |
| CAMEO | Semiprecious stone comprising two layers of different colours, the upper of which bears a figure carved in relief (5) |
| AZALEA | Type of rhododendron grown for its showy flowers of different colours (6) |
| NEAPOLITAN | Type of ice cream with several layers of different colours and flavours (10) |
| PETUNIA | Half-hardy annual with flowers of different colours and of at least three distinct types, the grandiflora, multiflora, double-flowered, etc. (7) |
| WARPED | Perverse conflict of different colours I ignored |
| VARIEGATE | Diversify with patches of different colours |
