Possible Clues:

• Derivative, tasteless film-making process
• Venture or product stemming from another source
• It's not on to gun down distant relation
• Descendant
• Gone! Fired over source of oil derivative
• Branch that is not on fire
• Not working? Fire new branch
• No longer wanting country sport on estate as new development?
• By-product
• Branch frequently receiving loud order to go away