After months of speculation, Norwich completed the signing of 18 year old Peterborough midfielder Flynn Clarke on 24th June 2021.
Clarke was on the books at Peterborough from the age of nine and signed a professional contract on his 17th birthday in December 2019 He made his first team debut in a 1-0 loss to Cheltenham Town in the first round of the EFL Cup in September 2020. In his second appearance for Peterborough, an EFL Trophy tie against Burton Albion, he scored his first goal for the club. His league debut came in Peterborough's opening game against Accrington Stanley in September 2020. He had made 21 appearances for the Posh by the time of his transfer to Norwich, scoring three goals.
He is the grandson of former Northern Ireland, Peterborough and Southampton striker Colin Clarke. He was selected for the Scotland Under-19 squad in October 2020.
“I feel absolutely delighted to arrive here, I’m over the moon," Clarke told City's official website. “The club is a great club. They look at a lot of the youngsters and try to make a pathway for them." It is expected that he will initially play for Norwich's development squad.
He scored nine goals and registered three assists for the Canaries' development squad during the 2021-22 campaign.
On 11th July 2022 he joined Walsall on a season-long loan. Saddlers Hhead coach Michael Flynn was pleased to welcome Clarke to the Midlands club, where current Norwich head coach Dean Smith started his managerial career. "I'm excited to welcome Flynn to the squad. He is a very talented player and he gives us that creativity in the final third. He has a very good range of passing and he's very highly thought of at Norwich. I would like to thank Dean Smith and Norwich for helping us in bringing Flynn into the club. I'm excited to work with him."