Quicker to show real potential, that is, for a raw beginner (7)
I believe the answer is:
earlier
'quicker' is the definition.
Both the definition and answer are adverbs. Perhaps there's an association between them I don't understand?
'real potential that is for a raw beginner' is the wordplay.
'potential' is an anagram indicator (another potential order of the letters).
'that is' becomes 'ie' (short for Latin 'id est', 'that is').
'for' is a charade indicator (letters next to each other).
'beginner' suggests taking the first letters.
The initial letter of 'raw' is 'r'.
'real' anagrammed gives 'earl'.
'earl'+'ie'+'r'='EARLIER'
'to show' acts as a link.
Can you help me to learn more?
(Other definitions for earlier that I've seen before include "Beforehand" , "at a previous date" , "Prior" , "Older" , "Formerly" .)