Highway headache is a term used to describe the difficulties that arise when driving on highways due to inclement weather or traffic congestion. In this crossword, the solutions SLEET (5 letters), TIEUP (5 letters) and TRAFFICJAM (10 letters) all refer to different aspects of highway headache. SLEET is a type of precipitation consisting of small ice pellets that can make driving difficult. TIEUP is a term used to describe a situation in which traffic is blocked or delayed, often due to an accident or construction. Finally, TRAFFICJAM is a term used to describe a large number of vehicles that are unable to move due to congestion. All three of these terms are related to highway headache and can make driving on highways difficult.