Possible Clues:

• 1972 Bill Withers hit
• "I'm here to help"
• "I'm at your disposal"
• Volunteer's offer
• Bill Withers hit of 1972
• 1972 hit for Bill Withers
• "I can help"
• 'I'm at your disposal'
• Bill Withers song about a manipulative partner
• "I'll do whatever you need"