[3] He spent time on loan in National League 1 and the RFU Championship with Blackheath, Moseley and Nottingham.

[7] In January 2020 he received his first call up to the senior England squad for the 2020 Six Nations Championship[8] and on 2 February 2020 made his debut[9] as a replacement for Kyle Sinckler in the opening round defeat away to France.

[10] He also played in the final round as England beat Italy to win the tournament.

[11] In November 2020 Stuart made his first start for England in their opening game of the Autumn Nations Cup against Georgia[12] and subsequently came off the bench in the final as England defeated France in extra-time to win the competition.

[13] On November 19, 2022, Stuart came off the bench against New Zealand to score his first 2 senior international tries which would subsequently draw the game 25–25, with England having been 17–3 down at half time.