After a strong 2006, Clare was included in the Highlanders squad for the 2007 Super 14 season. Aged only 22, his Super Rugby career was off to a highly promising start as he started 4 of the team's first 5 games of the season. However, his career came to a crashing halt on 2 March in a game against the Blues when he suffered a compound fracture to his leg. Clare's leg injury forced a two-year layoff from the sport, and he didn't play again until 2009.