Traffic snarler is a term used to describe a situation in which traffic is significantly slowed down or stopped due to an unexpected event. The two crossword solutions for this term are 'CRASH' and 'SNOWSTORM'. A CRASH is an accident involving vehicles, usually caused by a collision between two or more of them. A SNOWSTORM is a severe weather event characterized by heavy snowfall and strong winds. Both of these events can cause traffic to slow down or stop completely, making them both fitting solutions for the term traffic snarler.