Upright vicar's first article getting rewritten (8)
I believe the answer is:
vertical
'upright' is the definition.
('vertical' can be similar in meaning to 'upright')
'vicar's first article getting rewritten' is the wordplay.
'first' suggests taking the first letters.
'getting' says to put letters next to each other.
'rewritten' is an anagram indicator.
The first letter of 'vicars' is 'v'.
'v'+'article'='varticle'
'varticle' is an anagram of 'VERTICAL'.
(Other definitions for vertical that I've seen before include "Not laid down" , "At right angles to the base line" , "At right angles to the horizontal" , "as is column" , "Straight up" .)