Related Clues:

• It contains the enzyme ptyalin
• Whistle wetter
• Dribble, like last, sad marsupial left
• Liquid in the mouth
• Returning nobleman imprisons old slaver
• Lava is treated as a kind of liquid
• Exploitative type's drivel?
• Show gushing appreciation
• Vessel with cramped accommodation offers cheap ticket for crossing lake
• Run off at the mouth?
• It's out of the mouths of babes?
• What a hungry baby may do?
• Dribble in game, turning on defender's outside
• Slaver and doctor -- gents that should be shown up
• Dog slobber