Reportedly studied newspaper in late night flight (3-3)
I believe the answer is:
red-eye
'late night flight' is the definition.
(as in a red-eye flight)
'reportedly studied newspaper' is the wordplay.
'reportedly' shows a homophone (sound like).
'studied' becomes 'read' (I've seen this in other clues).
'newspaper' becomes 'eye' (I can't justify this - if you can you should give a lot more credence to this answer).
'read' is a homophone of 'red'.
'red'+'eye'='RED-EYE'
'in' is the link.
(Other definitions for red-eye that I've seen before include "Poor quality, coarse powerful whiskey" , "Poor whiskey - overnight flight" .)