Related Clues:

• First letter, to Aristotle
• A, as in Athens
• Greek 'A'
• Greek character
• Greek a
• First Greek letter
• Athenian leader?
• Head of the pack
• Highest in rank, among animals
• Leading male in a pack
• Certain male
• Aristotle's A
• A, to Aristotle
• Omega partner
• Dominant, as a male