Possible Clues:

• Organic compound obtained from a variety of trees
• Certain chemical compound
• Compound that's an anagram of "steer"
• Trees (anag.)
• She's terrified —this chemical has been swallowed
• Organic compound, often odorific
• Woman loses husband in compound
• Methyl methacrylate, e.g.
• Compound formed from acid and alcohol
• Ending for "poly"