Brief written record of college uprising (4)
I believe the answer is:
note
'brief written record' is the definition.
(I've seen this before)
'college uprising' is the wordplay.
'college' becomes 'eton' (I've seen this before).
'uprising' is a reversal indicator.
'eton' written backwards gives 'NOTE'.
'of' is the link.
(Other definitions for note that I've seen before include "Do, re or mi?" , "Heed; record" , "It could be me" , "Fiver, say" , "Annotation; tone" .)