Related Clues:

• ''__ only as directed''
• "What's the ___?" (quitter's lament)
• Not squander
• Not pure
• Put out (effort)
• Single-___
• Run, as software
• Juice, as an athlete
• Use, as power
• "___ only as directed"
• Adopt
• Wield, as power
• Mileage, in a way
• ___ tax
• "___ sparingly"