Possible Clues:

• It is a help when one gets sick at last (6)
• Sounds as if what's all over your face is helpful
• Serves the purpose
• Is of use when a number set sail
• A weeper's the thing when it serves the purpose
• Takes advantage of
• Takes advantage of offer to get out of love affairs
• Helps when cover for broadcast is held
• Helps a number of Romans over troubles also engulfing part of US
• Sounds as if something over your face is what helps