Possible Clues:

• Custom necklace for a chef?
• Apt description of the sequence suggested by the answers to starred clues?
• How the animals line up, to eat at McDonald's, for example?
• Natural order of consumption of string of sausages?
• In which one link tucks into the next
• Natural order
• Hierarchy
• Hierarchy, so to speak
• Hierarchy of what eats what
• Hierarchy of different living things