Possible Clues:

• Trivial
• Prohibition, most of all, is boring
• Boring
• 'Trite, time-worn (5)'
• Run-of-the-mill
• Unimaginative
• Not the least bit fresh
• Taliban dismiss it as run-of-the-mill
• 'Dull, commonplace (5)'
• Stale fruit mostly at bottom of bowl