Religious leader (4)
'religious leader' is the definition.
(I know that imam is a type of religious leader)
This is all the clue.
(Other definitions for imam that I've seen before include "Ma, I'm off to find religious Muslim" , "Man leading prayers in a mosque" , "Muslim community leader" , "Strict religious leader" , "Authority on Islamic doctrine and law" .)
'religious leader' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for pope that I've seen before include "Pontiff" , "author" , "Writer" , "fisherman's successor" , "Satirist" .)