Possible Clues:

• Dilute 26's forerunner when the boat comes in
• See 22-Down
• Kind of rat or snake
• Mixer that completes 37-Across
• Use a hose on, as a garden
• Helen Keller's first word
• Ate what is in this and in 12 across
• See 7
• Cooler contents
• Earth, air, fire partner