Related Clues:

• Disgust makes sodium turn to salt
• Non-21 description of Livingstone, say?
• What's missing here on each mule, for example
• First light?
• Lunatic unmanned? Not in this puzzle!
• Sexless
• De-sex
• Neither male nor female
• Castrate
• Usually the first clue (though not here!)
• Like some Latin nouns
• Without gender
• Gender gives it away?
• Keep from reproducing
• Render powerless