| Answer | Crossword Clue |
|---|---|
| INK | Fluid in a pen |
| SQOL | Sound from a pen: no writing fluid (4) |
| INK | Pen fluid |
| OIL | Fluid in a drum |
| ACIDIC | Like fluid in a battery |
| INTAKE | Opening for fluid in a pipe. |
| VENIN | Toxic substance in a snake's fluid |
| BALLPOINTOINK | Fluid in some pens, to a pig? |
| SINGAPORESLING | In a ..., there's at least one fluid ounce of ... |
