Related Clues:

• Line on an invoice, perhaps
• Seine for catching fish
• Glove-making thread
• Safety enhancer
• It may go "swish"
• DuPont creation
• Monarch catcher
• Surfing site?
• Amount left after expenses
• Fisherman's profit?
• Google's realm, with 'the'
• Sport border
• Tightly-twisted cotton thread
• Trawler's gear
• Court partition