Impart real potential before walking down the aisle (10)
I believe the answer is:
premarital
'before walking down the aisle' is the definition.
I can't judge whether this definition defines the answer.
'impart real potential' is the wordplay.
'potential' is an anagram indicator (another potential order of the letters).
'impart'+'real'='impartreal'
'impartreal' anagrammed gives 'PREMARITAL'.
Can you help me to learn more?
(Other definitions for premarital that I've seen before include "before marriage" , "Congress before the match" .)