Vignette, proper text occasionally read (9)
I believe the answer is:
interpret
'read' is the definition.
(I know that read can be written as interpret)
'vignette proper text occasionally' is the wordplay.
'occasionally' indicates alternate letters.
'vignette'+'proper'+'text'='vignettepropertext'
The alternating letters of 'vignettepropertext' are 'INTERPRET'.
(Other definitions for interpret that I've seen before include "Read" , "Translate into another language" , "Explain the meaning of - another language?" , "Assign one's own meaning to" , "Translate, make sense of" .)