Crossword clues for the word: FID The word FID has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for FID Showing 1 to 7 of 7 results Clue(s) Cousin of a marlinespike. Marlinespike. Pin for splicing rope. Tapering pin used in rope splicing. Top mast support Topmast support Wooden pin: Naut.