A job left by English missionary (7)
I believe the answer is:
apostle
'missionary' is the definition.
(I've seen this before)
'a job left by english' is the wordplay.
'job' becomes 'post' (post is a kind of job).
'left by' becomes 'l' (I've seen this in other clues).
'english' becomes 'e' (abbreviation).
'a'+'post'+'l'+'e'='APOSTLE'
(Other definitions for apostle that I've seen before include "Leaps to find teacher of faith" , "Missionary or evangelist" , "Follower of Christ" , "A preacher of gospels" , "Maybe Peter" .)