Question student and cry (4)
I believe the answer is:
howl
'cry' is the definition.
(I know that howl is a type of cry)
'question student' is the wordplay.
'question' becomes 'how' (I've seen this in other clues).
'student' becomes 'l' (as in L-plates for learner drivers).
'how'+'l'='HOWL'
'and' is the link.
(Other definitions for howl that I've seen before include "Shout" , "Cry loudly" , "Long, loud, emotional utterance" , "Screech" , "Bay, clamour" .)