Fearless one printed revision (8)
I believe the answer is:
intrepid
'fearless' is the definition.
(synonyms)
'one printed revision' is the wordplay.
'one' becomes 'i' (Roman numeral).
'revision' indicates an anagram.
'printed' with letters rearranged gives 'ntrepid'.
'i'+'ntrepid'='INTREPID'
(Other definitions for intrepid that I've seen before include "Audacious" , "I printed this way, being daring" , "Invulnerable to fear" , "Fearlessly adventurous" , "Brave and fearless" .)