A tense upset for the university body (6)
I believe the answer is:
senate
'university body' is the definition.
'senate' can be an answer for 'body' (I have seen 'Political body' mean 'senate' so perhaps 'body' could also mean 'senate'). I am not certain of the 'university' bit.
'a tense upset' is the wordplay.
'upset' indicates anagramming the letters.
'a'+'tense'='atense'
'atense' is an anagram of 'SENATE'.
'for the' is the link.
Can you help me to learn more?
(Other definitions for senate that I've seen before include "Legislative assembly" , "House where politicians" , "State assembly" , "Governors here" , "Upper house of the US Congress" .)