Possible Clues:

• Ill-defined situation
• Ill-defined region
• Ray eager to resolve doubtful situation
• Where things are not black and white
• Something lacking definition, such as an elephant's bottom?
• Ill-defined matter
• Old folks home, perhaps, is neither one thing nor the other
• Retirement village for which responsibility is unclear
• Agree to differ about fish hauled up, subject to debate?
• Sign of head's maturity where issues are unclear