sub-leader
/ˈsʌbˌliːdə/noun
1A leader under the command of another leader; an assistant or deputy leader.
2 Journalism. A secondary leader in a newspaper or other periodical. Now Australian and NZ.
Origin
Late 18th century; earliest use found in Francis Grose (d. 1791), antiquary. From sub- + leader; originally after post-classical Latin subductor.