Related Clues:

• Prefix meaning "billion"
• It's one step up from giga-
• Trillion: Pref
• Prefix with 3-Down
• Prefix after giga- in computing
• Lots of storage space for carriage with a punch, it's said
• Memory of concert followed by talk of something to eat
• 6 down a splendid thing, on reflection
• Setter's half-mad? Great!
• Great - denoting a million
• Game (anag) - excellent
• Game (anag) -- great
• Very great
• Unit of weight (abbr)
• Roughly 2.2 pounds