Woman at university wears hair in curls for a year (3,5)
I believe the answer is:
per annum
'curls for a year' is the definition.
I can't judge whether this defines the answer.
'woman at university wears hair in' is the wordplay.
'woman' becomes 'ann'.
'at' says to put letters next to each other.
'university' becomes 'u'.
'wears hair' becomes 'perm' (I can't justify this - if you can you should give a lot more credence to this answer).
'in' means one lot of letters goes inside another.
'ann'+'u'='annu'
'annu' placed into 'perm' is 'PER ANNUM'.
Can you help me to learn more?
(Other definitions for per annum that I've seen before include "Yearly" , "For each year - in Latin" .)