Clarke will be flying to Austria where the England U19 team will prepare ahead of their European U19 Championship qualfiers.
England will play three matches in neighbouring Slovenia against Finland on October 9th, Slovenia on October 11th and Slovakia on October 14th.
Speaking to the CT about his international involvement, Clarke said: "It is a great honour to be involved in the squad and I never dreamed that I would be playing international football while in the first team at Coventry at this stage of my career and I am loving every minute of it."