Underwater Vehicle; Hoagie, Hero, Grinder
This page is the CodyCross answer for the clue below from Top Secret, Group 2098, Puzzle 4 (Retinal Scanner).
Question is: Underwater Vehicle; Hoagie, Hero, Grinder
and the answer is: SUBMARINE
Word Meaning:
SUBMARINE — Being, relating to, or made for use underwater, especially beneath the sea.
Definitions from Wiktionary.