Fellow drawing up sacred text (6)
I believe the answer is:
mantra
'sacred text' is the definition.
(mantra is a kind of sacred text)
'fellow drawing up' is the wordplay.
'fellow' becomes 'man' (I've seen this before).
'drawing' becomes 'art' (I've seen this before).
'up' shows that the letters should be reversed in order (in down clue: letters go upwards).
'art' backwards is 'tra'.
'man'+'tra'='MANTRA'
(Other definitions for mantra that I've seen before include "Slogan; refrain" , "Something said to focus concentration" , "Sacred text used as incantation" , "Words repeated as an aid to meditation" , "Several words repeated frequently" .)