| Porous mass of fibres found in the ocean |
SPONGE |
| Pounding, nails say |
HAMMERING |
| Prevented from spoiling |
PRESERVED |
| Putting into relevant sets |
GROUPING |
| Reference points |
CRITERIA |
| Reflections of sound waves |
ECHOES |
| Rip the drop of saline solution |
TEAR |
| Second-smallest continent |
EUROPE |
| Secret way of writing |
CYPHER |
| Skilled worker at craft |
ARTISAN |
| Sticks marked off in units |
RULERS |
| Sung without instrumental accompaniment |
ACAPPELLA |
| Take an oath |
SWEAR |
| Take away weapons |
DISARM |
| They take pleasure from inflicting pain |
SADISTS |
| They take the initiative and direct others |
LEADERS |
| Turns into money, a cheque say |
ENCASHES |
| Yearly records |
ANNALS |