Possible Clues:

• Being silly, I had tent, perhaps, I see
• Absurd description of Dostoevsky hero
• How I had ten with a very silly jerk
• I had one of my ears half-baked
• There's no sense in ten with the jerk I had
• I had one of my ears without any point
• I would be very silly so to have ten with a twitch
• A sign of nervousness leaves one senseless after the start of 22 across
• Half witted
• Foolish description of Dostoevsky hero?