Picture from one publication in English (7)
I believe the answer is:
imagine
'picture' is the definition.
(picture can mean to visualise or imagine)
'one publication in english' is the wordplay.
'one' becomes 'i' (Roman numeral).
'publication' becomes 'mag' (abbreviation for magazine).
'english' becomes 'E' (abbreviation).
'i'+'mag'+'in'+'e'='IMAGINE'
'from' acts as a link.
(Other definitions for imagine that I've seen before include "Suppose; conceive" , "Classic Lennon song" , "John Lennon hit" , "Conceive in the mind" , "Fancy - Lennon song" .)