Taking the place of fashionable falsification by university (2,4)
I believe the answer is:
in lieu
'taking the place' is the definition.
I know nothing about this answer so I cannot judge whether this works.
'fashionable falsification by university' is the wordplay.
'fashionable' becomes 'in' (in can mean fashionable or trendy).
'falsification' becomes 'lie' (I've seen this in another clue).
'by' is a charade indicator (letters next to each other).
'university' becomes 'U' (abbreviation for university).
'in'+'lie'+'u'='IN LIEU'
'of' is the link.
Can you help me to learn more?
(Other definitions for in lieu that I've seen before include "in place of another" , "'In place of (2,4)'" , "As a substitute" , "In place of, instead" .)