Laurids

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Across
  1. 3. listen (anagram)
  2. 4. cat (singular)
  3. 5. dog (plural)
  4. 6. walk (past tense)
Down
  1. 1. run (present tense)
  2. 2. happy (synonym)
  3. 3. sit (imperative)
  4. 4. hot (antonym)