Erudite talker, possibly curt and giving a leer around (8)
I believe the answer is:
lecturer
'erudite talker' is the definition.
'lecturer' can be an answer for 'talker' (lecturer is a kind of talker). I'm not sure about the 'erudite' bit.
'curt and giving a leer around' is the wordplay.
I cannot really understand how this works, but
an anagram of 'curt' is 'ctur' which is within the answer.
'a leer' could be 'leer' and 'leer' is found in the leftover letters.
This accounts for all the letters.
This explanation may well be incorrect...
'possibly' is the link.
Can you help me to learn more?
(Other definitions for lecturer that I've seen before include "University teacher" , "Education employee" , "don provided" , "College teacher" , "One who discourses (at university)" .)