Related Clues:

• Is effective
• Is useful
• Gives a boost to
• Gives assistance
• Double you with this for the litter improves it
• Gives aid
• Goes to bat for
• Contributes to
• Is of benefit to
• Makes a difference
• What agent does to career
• What manager does to career
• Provides aid
• Gives advice, e.g
• Does some volunteering