Possible Clues:

• Where the Hawks used to play
• Old science issue
• The beginning of science, for god?
• If means ''all''
• Potent or present lead-in
• Prefix before 'potent' or 'present'
• Prefix before "potent" or "present"
• Potent or present preceder
• Potent leader?
• Prefix with bus or potent