Possible Clues:

• Add water, e.g.
• Compound containing water
• Chemical compound to trap rodent in town near Manchester
• Sadly the yard appears to fill with water
• Disintegrating thready compound
• Cause (something) to absorb water
• Sulfuric acid, say
• Combine with water using form of dry heat
• To add water he catches the yard rat
• Moisturise