ACROSS 4. Monotony (6) 7. Very large snake (8) 8. One's professional life (6) 10. Fissure or crevice (5) 13. Thin fog (4) 14. To fling (4) 15. Hardens (4) 16. Charge (3) 17. Among (4) 19.

Daryl Sng wanted to get faster at crossword puzzles. So he decided to train by ignoring half the clues. “It’s like if you’re on a football team and you say, ‘I’m only going to pass ...