There is currently no way to adjust the size of the printed puzzle. Printing the puzzle in landscape instead of portrait may increase the size of the grid, but will not increase the size of the clues.
If you prefer a larger grid, we suggest printing from the ePaper, our digital replica of the paper in print, at epaper.bostonglobe.com. Search for “crossword” in the top right corner, increase the font size, and print in landscape orientation for the largest possible printable grid.