Instinct lacking in educational experience? (7)
I believe the answer is:
tuition
'educational experience?' is the definition.
(being tutored)
'instinct lacking in' is the wordplay.
'instinct' becomes 'intuition' (I've seen this before).
'lacking' indicates named letters should be taken away.
'intuition' with 'in' removed is 'TUITION'.
(Other definitions for tuition that I've seen before include "practice" , "Teaching, instruction" , "Schooling" , "Training" , "Personal coaching" .)