Person to ask 're-do it' potentially? (6)
I believe the answer is:
editor
'person to ask' is the definition.
I can't tell whether this definition defines the answer.
're-do it potentially?' is the wordplay.
'potentially?' indicates an anagram (letters have the potential to spell a new word).
're'+'do'+'it'='redoit'
'redoit' anagrammed gives 'EDITOR'.
Can you help me to learn more?
(Other definitions for editor that I've seen before include "One who determines the final content of a text" , "Journalist - rioted (anag)" , "One expected to make final" , "Cudlipp, for one" , "Media person" .)