Possible Clues:

• They're tied in a ropey way to underwriters, for instance, consumed by marine hazards
• Simple way of joining ends of strings
• These might secure lock at back: not keys to house
• Folk songs used regularly in remixed stereo links
• Ties made of two half hitches
• Impressive thing about iron-backed fasteners
• Rates for sailor after organising free links
• They make fast speed when sailing under marine hazard
• Rope manipulations for ref tokens, strong and secure
• Ties birds on the rocks?