The
San Diego Chargers selected Clary out of Kansas State with their pick in the sixth round (187th overall) of the
2006 NFL draft. In his rookie season, Clary spent the year on the Chargers'
practice squad. Clary became a starter late in the 2007 season. A reserve for most of the year, the coaches inserted him into the starting lineup at right tackle in early December to give the team’s struggling running game a spark. Over the final five games, the Chargers rushed for 880 yards, scored eight touchdowns and went 5-0. Clary’s ascension into the
starting lineup helped the Chargers capture the
AFC West title en route to a berth in the AFC Championship Game. Clary earned the starting right tackle spot in mini camp. Following the 2008 season, he was awarded $405,859 in additional pay from the NFL's performance-based pay system, which gives financial compensation based on a comparison of playing time to salary; this made him the biggest beneficiary in 2008. Clary re-signed a one-year contract with the Chargers during the 2009
off-season. Clary was the Chargers’ winner of the
Ed Block Courage Award in 2010 after recovering from a serious ankle injury in 2009 that required surgery. He came back from the injury and played every snap during the 2010 and ’11 seasons. Clary again re-signed with the Chargers, this time on a four-year, $20 million contract almost immediately following the lockout during the 2011 offseason. The contract was front loaded, so Clary earned $8.5 million in the first year. Clary went on to start and play in all 16 games for the Chargers in 2011. In 2012, Clary started and played in 14 games for the Chargers at
right tackle, missing two games due to a knee injury. Clary was moved to
right guard during the 2013 season after the Chargers selected
D.J. Fluker in the first round of the
2013 NFL draft. After starting in 93 of his 103 career games, recurring problems with Clary's hip sidelined him for the entire
2014 season. On January 8, 2015, he announced his retirement from the NFL. ==Personal life==