Related Clues:

• X, e.g.
• Like 0, but not O
• 1, 2, 3, for instance
• Affable and sociable
• 1, 2, 3, say
• Symbol for number
• 1 or 2, say
• The sense of smell gets in this, by the sound of it
• Figuratively, 8 down would be one such to be made lean with rum
• In short, no
• Figure how this might get run with a meal?
• A way to run with a meal, figuratively speaking
• 'Might make a man with a rule? In short, no (7)'
• One is what first is not
• C or D, to old Romans