Possible Clues:

• Small child who can't yet walk and who writes badly?
• Hard to read his writing for society contacting little one getting around on own steam
• 'Singular creep, supported by Queen,' one writes in haste
• Small spider, perhaps — one with spidery writing?
• Society sycophant poor at character-forming activity?
• Son, one on all fours for doctor writing prescription, typically?
• Poor writer's son, one who behaves obsequiously