Glean vice in translation of the Gospel (9)
I believe the answer is:
evangelic
'of the gospel' is the definition.
(I've seen this before)
'glean vice in translation' is the wordplay.
'in translation' is an anagram indicator (I've seen this in other clues).
'glean'+'vice'='gleanvice'
'gleanvice' anagrammed gives 'EVANGELIC'.
(Other definitions for evangelic that I've seen before include "Lucan, eg" , "Old Protestant" , "Missionary" , "preaching the gospel" , "Based on the Gospels" .)