Evangelist had quiet call with engineer (8)
I believe the answer is:
preacher
'evangelist' is the definition.
(I've seen this before)
'quiet call with engineer' is the wordplay.
I cannot really see how this works, but
'quiet' could be 'p' (music symbol for 'piano', ie soft or quiet) and 'p' is present in the answer.
'engineer' could be 're' (Royal Engineer) and 're' is present in the answer.
This may be the basis of clue (or it may be nonsense).
'had' is the link.
Can you help me to learn more?
(Other definitions for preacher that I've seen before include "Religious minister" , "Gospeller" , "Sermoniser; minister" , "He may drone on" , "Someone spreading a gospel" .)