Expert about absorbed by spoken English (6)
I believe the answer is:
oracle
'expert' is the definition.
(I've seen this before)
'about absorbed by spoken english' is the wordplay.
'about' becomes 'c' (abbreviation for 'circa').
'absorbed by' indicates putting letters inside.
'spoken' becomes 'oral' (similar in meaning).
'english' becomes 'e' (abbreviation).
'c' put into 'oral' is 'oracl'.
'oracl'+'e'='ORACLE'
(Other definitions for oracle that I've seen before include "Source of divine prophecy" , "Augury" , "Someone of great wisdom" , "Shrine; its message" , "Holy place where a god was believed to give advice and prophecy" .)