Related Clues:

• Gained understanding
• Acquired and digested knowledge
• Shrewd, quick to spot advantage
• Sharp, shrewd
• Educated, scholarly
• Sage, knowing
• 'Perceptive, shrewd (6)'
• Very knowledgeable
• Likewise, Edward Lear
• Sharp enough to have you in a state
• Sharp enough to get you into a state
• Sharp enough to get at suet with this
• Likewise, Edward Lear?
• It's like this, bening like 21 down, too
• Having been taught to have worked for a pound, perhaps