Crossword clues for the word: GRUBSTAKE The word GRUBSTAKE has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for GRUBSTAKE Showing 1 to 5 of 5 results Clue(s) Funding for a miner Prospector's funding Prospector's start-up costs Startup assistance Up-front business funding