Possible Clues:

• Part of poetic line -- the writer is British
• Hamlet's 'To be,' e.g
• Foot with two parts
• Poetic unit
• One of four in 'As I Was Going to St. Ives'
• A metrical unit
• Foot used to keep rhythm?
• After lifting, doctors start to inspect foot
• 'Hurray' or 'alas'
• Part of a pentameter?