Errol's Xmas crossword

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Across
  1. 1. Island south of St Vincent, east of Aruba
  2. 4. Andrew Watson, Arthur Wharton, Walter Tull
Down
  1. 2. Unusually funky music?
  2. 3. It takes one to catch one, according to Alonzo.
  3. 5. Hieroglyphics may have been invented by him, according to Harry.