| YPRES | Germans released thousands of cylinders of chlorine gas in which April 1915 battle? (5) |
| FIRST | The day of the month on which April Fool's Day occurs |
| LOOSE | After 1915 battle, English set free |
| TOXIC | Like chlorine gas |
| BUTTERFLIES | Jagger released thousands of these during the Rolling Stones' historic 1969 Hyde Park concert |
| LASER | A devise containing a crystal gas in which atoms, when stimulated by focused light waves, amplify and concentrate these waves, then emit them in a narrow intense beam |
| SCROLLS | Ancient books in the form of cylinders of parchment or papyrus; or, ribbon-like ornaments bearing mottoes or inscriptions in architecture, art or heraldry (7) |
| ECLAIRS | Patisserie items consisting of cylinders of choux pastry filled with cream (7) |
| IDEAL | Name given to a hypothetical gas in which atoms do not interact with each other (5) |
| ROLLS | Buns; furled cylinders of cake, carpet, cloth, newspaper, parchment etc; strips of material with pockets for paintbrushes, pencils or tools; lists of names; trills; or, throws of dice (5) |
| THREE | The number of cylinders in the Melkus RS1000'S engine (5) |
| PIPES | Hollow cylinders of metal, or plastic, used for the conveyance of water. (5) |
| ECLAT | Splash of chlorine to stop worry (5) |
| INNER | Central core of cylinder right under cone's lower section (5) |
| EIGHT | Number of cylinders some cars have |
| ARGON | Neighbor of chlorine on the periodic table |
| SCOUR | Thoroughly clean acid round top of cylinder (5) |
| CIGAR | Cylinder of tobacco rolled in tobacco (5) |
| SPOOL | Cylinder of thread |
| SPRINGROLLS | In Chinese cookery, savoury cylinders of vegetables and meat (6,5) |
