Stuart is a member of Glasgow's elite development group and has been called up from Scotland U20's Six Nations squad.
The Hawick youngster told the Hawick News: “This is a great opportunity to play professional rugby. I’m excited and raring to go. To be given a start in the Magners League is a dream come true.
“To play with, and also against, the best professional rugby players in the league is a challenge I’m looking forward to.”