Possible Clues:

• Oldie's line upset for natural preservative
• Oldies line dancing for an impregnator!
• Idolise Len playing - there's something about his bat?
• Varnish and paint ingredient
• Something in hardware store is soiled line thrown out
• Paint/varnish ingredient
• Sounds as if Lynne might catch sight of Doyle from the flax
• Deionise compound, infusing two litres as plant extract
• Will Lynn cede? Listen, I'll use it in the paint
• Substance extracted from seeds of the flax-plant