Possible Clues:

• Pen name of Charles Dickens
• Dickens' pseudonym
• 'Sketches by ___' (1836 book)
• English lit moniker
• Pen name for Dickens
• Literary pseudonym
• 'Sketches by ___,' 1836
• Pen-name of Charles Dickens
• Pseudonym of Charles Dickens
• A vessel for the lough, by the sound of it