Crossword clues for the word: HARDTACK The word HARDTACK has appeared as an answer to at least 12 crossword clues on different crossword puzzles. Crossword clues for HARDTACK Showing 1 to 12 of 12 results Clue(s) *Common Civil War ration Army rations Biscuit of a sort. Drat! Frisky horse's eaten sailor's food Grub with your grog Pilot bread. Sailor's fare. Sailor's ration Sailor's sea biscuit Saltless biscuit Ship biscuit. Ship's biscuit