Possible Clues:

• Become wider or larger as eye pupils may
• Expand the pupils
• Speak at length using elaborate detail
• Widen, distend
• Swell girl never on time
• That swell, Princess Diana, is no more
• Expand - talk at length
• Become larger, but reportedly survive into old age
• Widen as eyes do
• Make (something) wider or more open