Upon his return, Hidalgo-Clyne put himself in contention for a place in the senior squad and made his debut against Munster in September 2013. His first try for the club came in the opening minute of Edinburgh's 48–0 evisceration of Benetton Treviso in December 2014. At the end of the 2014–15 season, Hidalgo-Clyne was named the Pro12 Young Player of the Year.