Possible Clues:

• One on almond
• In brief, deranged by the forces of evil
• Hard fruit covering
• 'In a ..., in essence (8)'
• In this in short it's the devil of a place for the insane
• One makes a brief summary in one
• The essential core of crazy lower regions
• Bananas he will find in fruit container
• Hard container for edible kernel - or for brief summary
• Concise container