Oxford literary group in Cambridge college, entertaining learner (8)
I believe the answer is:
inklings
'oxford literary group' is the definition.
(literary club including JRR Tolkien and CS Lewis)
'in cambridge college entertaining learner' is the wordplay.
'cambridge college' becomes 'kings' (I've seen this before).
'entertaining' is an insertion indicator.
'learner' becomes 'l'.
'kings' enclosing 'l' is 'klings'.
'in'+'klings'='INKLINGS'
(Other definitions for inklings that I've seen before include "hints" , "Hings, slight suspicions" , "Intimations, slight suspicions" , "Slinking with intimations or suspicions" , "Slight suggestions, intimations" .)