Related Clues:

• With 44-Across, polluted precipitation
• Evidence in a paternity suit
• Try a tidbit
• Freeway
• Selling point in cigarette ads, once
• 3-D test
• Word with rock, rain or test
• Word with show or block
• The recently fired hit it
• Caustic liquid
• Limelike
• Hope/Crosby film title word
• Test software version
• ''Try some!''
• Crime lab stuff