Related Clues:

• Ready if required
• Chilled, in a way
• Blueprint, for example
• Like 2011, but not 2012
• Not neat?
• In the freezer
• Like a single sock
• Puccini's 'O ___ babbino caro'
• Having no matching sock
• Roulette choice
• "___ of God" (1985 movie)
• Like all prime numbers but 2
• 'How ___ ...'
• Not expected
• Like 69