Related Clues:

• Rule brings restriction reportedly
• Rule by restraint, not force
• Head of government in check - that's the rule
• Check key is inside - that's the rule
• Rule which is good kept in check
• Be champion, or throw in the towel? Seconds out!
• Rule about air guns regularly ignored
• As a rule, it may be said to be right
• As a rule, control natural water supply? Hear, hear!
• As a rule, give up second outing
• Hegemony
• 50% of foreigners, as a rule
• Rule sometimes followed by cats and dogs, say?
• Drops for the ear are unbeatable!
• Prevail, but good to be held in check