Possible Clues:

• Viscous liquid from green or black fruit
• Salad dressing ingredient
• Circle backs diabolical crude type coming from The Press in Greece
• Dressing ingredient
• Land O Lakes butter ingredient
• Baked potato rub
• Could nothing exist on such lubricant?
• Extra virgin product
• As it happens, Oscar is in Greece reporting to a crude type that's always pressed
• Orchestral leader not on tape is required by The Cars - and that's coming from The Press in Italy