Instructor is oddly curt, intercepting suggestive look (8)
I believe the answer is:
lecturer
'instructor' is the definition.
(thesaurus)
'oddly curt intercepting suggestive look' is the wordplay.
'oddly' indicates anagramming the letters.
'intercepting' is an insertion indicator (I've seen this in other clues).
'suggestive look' becomes 'leer' (I've seen this before).
'curt' is an anagram of 'ctur'.
'ctur' put inside 'leer' is 'LECTURER'.
'is' acts as a link.
(Other definitions for lecturer that I've seen before include "Third-level teacher" , "One who discourses (at university)" , "University staff member" , "with a penchant for haranguing?" , "Tutor" .)