Related Clues:

• Grand to get novel recognised
• Was absolutely sure
• "... Yorick! I __ him, Horatio"
• More than thought
• Was familiar with central character in Dickens novel
• Was sure about
• Wasn't oblivious
• Wasn't surprised
• Ascertained, as that you were trouble when you walked in
• Homophone of 46-Down
• Had run into before
• "I __ it!"
• Had heard about
• Pink "Who ___"
• "Portrait (He ___)" by Kansas