Related Clues:

• ''Inning'' has three
• Doubles in tennis?
• Naval rank: Abbr
• Lengths of short printing dashes
• Cdr.'s charge
• USN's successor to ''passed midshipman''
• Center of meanness?
• No-nonsense quartet?
• Argentina has two of them
• Skinniest couple?
• Consonants in "ninny"
• Sunning triplets?
• Almost half of ninety-nine?
• Ems split
• Tyranny's two