Possible Clues:

• String theory's first success with energy
• Wind caused by last bit of fruit drink
• Wind of Territorials' first victory by English
• String or strong thread
• Couple to front of electrical coil
• Bundler's buy
• Heavy-duty thread
• Pullstring material
• Packing material
• Tipperary leader fronting Ch¿teau Margaux's best is a great yarn