Possible Clues:

• Big name in computer games
• That's the first to see and sing
• For a start that's what you inherit, along with your little sister
• How G is about to be seen to be the first
• One would be the very first to book what heredity is all about
• It features seven days
• Seeing changes to second or first book
• OT opening
• Book first where heredity is all for it
• First book, for example, about current in loch