Sophie P's 30th birthday

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Across
  1. 1. denoting one or more people or things already mentioned or assumed to be common knowledge.
  2. 2. element AU on the periodic table
  3. 5. the city of a hundred spires
  4. 6. An affordable priced hotel chain Premier _
Down
  1. 1. the number of strokes under par an eagle refers to in golf
  2. 2. not _ out TV series featuring lee mack
  3. 3. surname of project hail Mary author
  4. 4. contestants would use this word to add to the cash pot in the weakest link