Job secured by potentially stout supporter (7)
I believe the answer is:
apostle
'supporter' is the definition.
(I know that apostle is a type of believer)
'job secured by potentially stout' is the wordplay.
'job' becomes 'post' (post is a kind of job).
'secured by' is an insertion indicator (inserted letters are held or secured).
'potentially stout' becomes 'ale' (I've seen this in another clue. I am not sure about the 'potentially' bit.).
'post' inserted within 'ale' is 'APOSTLE'.
Can you help me to learn more?
(Other definitions for apostle that I've seen before include "Preacher perhaps" , "Peter, perhaps" , "One of the biblical twelve (7)well don" , "Early Christian teacher" , "Preacher of the gospel" .)