Student inside growing fond of lecture (7-2)
I believe the answer is:
talking to
'lecture' is the definition.
(synonyms)
'student inside growing fond of' is the wordplay.
'student' becomes 'l' (as in L-plates for learner drivers).
'inside' means one lot of letters goes inside another.
'growing fond of' becomes 'takingto' (I am not sure about this - if you are sure you should believe this answer much more).
'l' placed into 'takingto' is 'TALKING-TO'.
Can you help me to learn more?
(Other definitions for talking to that I've seen before include "reprimand" , "criticism" , "sharp rebuke" , "Reproof" , "carpeting" .)