-es is added to words ending in y

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Across
  1. 3. - Attempts or efforts made to succeed (5 letters)
  2. 4. - Responses to questions or requests (7 letters)
  3. 6. - Transports or bears something (7 letters)
  4. 8. - Secret agents or watchers (5 letters)
  5. 9. - Young children (6 letters)
Down
  1. 1. - Insects or moves through the air (5 letters)
  2. 2. - Shouts or weeps loudly (5 letters)
  3. 5. - Large vehicles for transporting goods (7 letters)
  4. 6. - Duplicates or reproductions (6 letters)
  5. 7. - Stocks or provisions of goods (8 letters)