Related Clues:

• Hardly cutting-edge
• 'Compos mentis'
• Stiffly proper
• Healthy-minded
• Undeserving of a padded cell
• Right upstairs?
• Not cracked
• On one's trolley?
• Psychiatrist's determination, perhaps
• Capable of standing trial
• Not bananas, nuts or crackers
• Hardly capricious
• Grounded
• Far from frivolous
• Not looney-tunes