A Clue For Team EO

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Across
  1. 2. A loud noise created by lightning and bad weather. Starts with T.
  2. 4. A heavy tool used to drive nails into walls and wood. Starts with H.
  3. 6. Not liable or subject to death. Starts with I.
Down
  1. 1. A superhero team part of Marvel Comics' universe. Starts with A.
  2. 3. Last name of Australian actor who also played the role of George Kirk in Star Trek. Starts with H.
  3. 5. The opposite of being weak. Starts with S.