Possible Clues:

• Duck when crossing east of cork trees
• Now, Now 2012 album "Dead ___"
• Sherman ___, Calif
• Classic acorn producers
• Twelve ___ ('Gone With the Wind' plantation)
• Symbols of six states
• Stout trees
• Epsom Classic race
• Deciduous hardwoods
• Trees that squirrels are, like, obsessed with