Possible Clues:

• Tiny marine animal
• Animal wheeling to take exact position between two groups of soldiers retreating
• Plankton animal
• Aquatic creature in regular procedure provided with river
• Out of rubbish I am afraid will emerge a small animal
• Little animal in rubbish fire destroyed
• Tiny creature avoiding northern frontier resort
• Being in water, ready to turn up and replace oarsman's wife
• Simple animal more widespread around start of Ordovician time
• Organism that's disturbingly rife under rubbish