Related Clues:

• Not fair: that's ambiguous
• Pawnbroker once had a right to be less than explicit
• Article penned by aunt's husband Rex is not easy to understand
• Kind of power, one French back completely
• Greek character's obvious description of some physics
• Pawnbroker with a ring, initially doubtful
• Swap leaders of ill-defined industry such as this
• Obscure relative a rector
• Approach around London college that's far from conventional?
• Centrally focused? It's scarcely different from not focused
• Dubious lender advanced roubles
• Relative with a piece of youngster's education that's in need of explanation
• Maybe Sam has a recipe that's ambiguous
• One of the family foregoes a right which is questionable
• Relative amicability rules, initially? It's not obvious