Student at university in bloom (5)
I believe the answer is:
lupin
'bloom' is the definition.
The definition and answer can be both plants as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'student at university in' is the wordplay.
'student' becomes 'l' (as in L-plates for learner drivers).
'at university' becomes 'up'.
'l'+'up'+'in'='LUPIN'
Can you help me to learn more?
(Other definitions for lupin that I've seen before include "Plant with flowers on long spikes" , "Perennial plant" , "Flower with spike of usually purplish-blue flowers" , "Plant called after wolf" , "Flower of pea family" .)