Possible Clues:

• A tie without uniform? Swell
• Resemble Wordsworth's daffodils in area before spring
• A spring flourish
• Area certain to have plenty
• Thrive as union enters into a contract
• Flourish with a leap
• Have riches perhaps in a vault
• 007 receives Q's customary successor with a flourish
• Are plentiful
• A restrained flourish