After passing examination at college, back for quiz? (4)
I believe the answer is:
pump
'for quiz?' is the definition.
(both can mean to interrogate)
'after passing examination at college back' is the wordplay.
'after' says to put letters next to each other.
'passing examination' becomes 'pm' (PM is an example. I am not sure about the 'passing' bit.).
'at college' becomes 'up' ('up' can mean at university).
'back' shows that the letters should be reversed in order.
'pm' next to 'up' is 'pmup'.
'pmup' written backwards gives 'PUMP'.
Can you help me to learn more?
(Other definitions for pump that I've seen before include "Flat shoe; siphon" , "Set foot in it" , "Compressor, light shoe" , "Cross-examine; siphon" , "Fire bullets rapidly" .)