Exercise in papers at university (5-2)
I believe the answer is:
press-up
'exercise' is the definition.
(press-up is a kind of exercise)
'papers at university' is the subsidiary indication.
'papers' becomes 'press'.
'at university' becomes 'up'.
'press'+'up'='pressup'
'in' is the link.
(Other definitions for press-up that I've seen before include "Keep-fit exercise" , "PE exercise" , "Arm exercise while lying face down" , "Form of arm exercise" , "Gymnastic floor exercise" .)