In 1908 Clacton also began playing Colchester & District League and were Division Two champions and the Division Two Cup winners in 1909–10, also winning Division Two of the (now renamed) East Anglian League the following season. In 1912 the club folded for a second time, but were re-established the following year. They rejoined the Essex & Suffolk Border League (as the Colchester & District League was now known), remaining in it until 1934. During this period the club also played in the Ipswich & District League from 1921 until 1924, and again in 1927–28. In 1934 they left the Border League to join the Ipswich & District League. In 1935 they were founder members of the Eastern Counties League, finishing as runners up in 1936–37. The following season they switched to the newly established Essex County League, finishing bottom in its only season before returning to the ECL in 1938. In 1948 the club turned professional and in 1952–53 finished as runners-up for a second time.