Drawn university student turned crimson (5)
I believe the answer is:
lured
'drawn' is the definition.
(I've seen this in another clue)
'university student turned crimson' is the wordplay.
'university' becomes 'u' (abbreviation for university).
'student' becomes 'l' (as in L-plates for learner drivers).
'turned' is a reversal indicator.
'crimson' becomes 'red' (synonyms).
'u'+'l'='ul'
'ul' written backwards gives 'lu'.
'lu'+'red'='LURED'
(Other definitions for lured that I've seen before include "Seduced" , "Tempted or enticed" , "Attracted" , "was enticing" .)