Related Clues:

• Tapping target
• Maple fluid
• Syrup source
• Maple syrup source
• Source of maple syrup
• Sticky trunk stuff
• Syrup, essentially
• Source of some resins
• Sticky pine product
• It's tapped to make syrup
• Food for leafhoppers
• Stuff oozing down a trunk
• Source of syrup
• Trunk gunk
• It's transported in phloem