Related Clues:

• Periodic-table component
• Cartography
• Silver or sulfur
• Google feature
• Postage-stamp purchase
• Undercover item?
• Pillowcase accompanier
• Gold or silver, but not bronze
• It comes in fifths
• Some are genetic
• Helium or hydrogen
• Thin piece
• Shakespeare's '-- Night'
• Vacationers' guides
• Gold, e.g.