Related Clues:

• Vital elements
• Impression makers
• Machinery parts
• Enforceability, figuratively
• Bit players in a big machine
• Effectiveness, figuratively
• Force, metaphorically
• They're put in food
• Some working parts
• They aren't major players
• Means of enforcement, metaphorically
• Spots for caps and crowns
• They may be given crowns - symbols of legal power?
• Support the cut in force
• Ends of ardent Labourite are not much - power!