| SMALTO | Richly coloured glass tile or tessera used in mosaic (6) |
| MOSAIC | Design or picture created with a number of small tiles or tessera; or, a colourful variegated pattern (6) |
| QUARRELS | Word for squabbles or wrangles that also refers to square things, including panes of glass, tiles or arrowheads for the bolts of arbalests/crossbows (8) |
| PLASMA | One of four fundamental states of matter; or, green chalcedony, traditionally used in mosaic (6) |
| GLAZED | Glass, tiles - and sometimes your eyes - can be thus (6) |
| TESSERA | Small piece used in mosaic |
| SMALTI | Pieces of coloured glass or enamel used in mosaics |
| MERCIA | Angles seen here in mosaic remain reflex (6) |
| SCRIBE | An amanuensis is an expert in Mosaic law (6) |
| INLAID | Like some tile or dental work |
| SPACER | Word for an astronaut; a bar-shaped key for inserting a blank; an item for separating beads, tiles or type; or, informally, a person who zones out (6) |
| CATKIN | Spike of flowers in mosaic at Kingsville |
| TILDES | Curly marks, first piece of decoration in mosaic |
| MARBLE | Sculptors might use this ball of coloured glass (6) |
| CHASTE | Decent mosaic has tessera component |
| TETRIS | A puzzle video game based on matching a series of falling colourful tiles or polyominos to clear levels (6) |
| TESSELLA | A very small square tile of stone used in mosaics |
| TILE | Item such as an azulejo or a tessera; or, any one of the pieces used in Scrabble, mah-jong or dominoes (4) |
| TESSERAE | Small square tiles used in mosaics |
| OPUS | ____ musivum is mosaic work in enamel or coloured glass |
