Possible Clues:

• Source of lipids found in quickly-fried toast
• See 26 Across
• General greeting?
• 'Who are they you --, and that one after another -- you?' (Whitman)
• Gunshots from a drab outlying part of London
• Have a general reaction?
• Gunfire, perhaps, that could make us late
• Homage
• Give a hand as it's up with strings attached
• Introduction to show with an instrument providing welcome