Male Deep-Sea Diver or Aquatic Soldier
Puzzle 12 of Life of a Book Medium Pack
Question is: Male Deep-Sea Diver or Aquatic Soldier
and the answer is: FROGMAN
Word Meaning:
FROGMAN — A Open Water Certified Diver, especially one in a diving suit (as opposed to one not in scuba gear).
Definitions from Wiktionary.