Beneficial regular payment including university time (8)
I believe the answer is:
salutary
'beneficial' is the definition.
(synonyms)
'regular payment including university time' is the wordplay.
'regular payment' becomes 'salary' (salary is a kind of regular payment).
'including' indicates putting letters inside.
'university' becomes 'U' (abbreviation for university).
'time' becomes 't' (abbreviation).
'u'+'t'='ut'
'salary' going around 'ut' is 'SALUTARY'.
(Other definitions for salutary that I've seen before include "Beneficial in providing educating experience" , "Beneficial, good for you" , "Having beneficial or wholesome effect" , "Containing or bringing a timely (health) warning" , "Good for one" .)