Gave professor wrong date (7)
I believe the answer is:
donated
'gave' is the definition.
(donating is a kind of giving)
'professor wrong date' is the wordplay.
'professor' becomes 'don' (I've seen this before).
'wrong' indicates an anagram.
'date' is an anagram of 'ated'.
'don'+'ated'='DONATED'
(Other definitions for donated that I've seen before include "Gave" , "Given" , "Presented" .)