Discerning taste spread across university (6)
I believe the answer is:
astute
'discerning' is the definition.
(thesaurus)
'taste spread across university' is the wordplay.
'spread' is an anagram indicator.
'across' means one lot of letters goes inside another.
'university' becomes 'u'.
'taste' anagrammed gives 'astte'.
'astte' enclosing 'u' is 'ASTUTE'.
(Other definitions for astute that I've seen before include "Shrewd and sagacious" , "Shrewd, quick to spot advantage" , "Wide" , "Wise" , "Clever and canny" .)