Tied up with student from university and given water (6)
I believe the answer is:
dilute
'given water' is the definition.
'dilute' can be an answer for 'water' (thesaurus). I am not certain of the 'given' bit.
'tied up with student from university' is the wordplay.
'up with' is an anagram indicator (letters get chucked up).
'student' becomes 'l' (as in L-plates for learner drivers).
'from' says to put letters next to each other.
'university' becomes 'U' (abbreviation for university).
'l'+'u'='lu'
'tied' with its letters mixed up with 'lu' gives 'DILUTE'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for dilute that I've seen before include "Add liquid to lessen strength" , "Thin out, make less strong" , "Reduce concentration of a liquid" , "Add water to thin" , "Reduce in strength or concentration" .)