Possible Clues:

• Dostoevsky's mature version of Wordsworth's boy?
• 'I had a tent, silly! (5)'
• Definite Mensa reject
• Boob
• 'I would be without sense with tent, perhaps (5)'
• Mug - I had one to put back
• One and ten with the silly TD up there
• I had the tent, perhaps, for 12 across
• Green Day "American ___"
• I spot one inside supplying dope