Related Clues:

• Ebullience
• Activity
• Vital force in Spanish port, an ancient city
• Port of Spain, an old city brought to life
• Potency of port half an hour later
• Power of Spanish port - an ancient city
• Energy of Spanish and Babylonian towns
• Madly devouring without end, showing gusto
• A port, half an hour later, shows potency
• It helps one accomplish a goal
• What a driven person may have
• -- and vigor
• Pep (informal)
• Dynamism — vitality
• "Vigor" go-with