Prefix with liberal (3)
I believe the answer is:
neo
'prefix with liberal' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for neo that I've seen before include "Prefix meaning new or recent" , "Prefix meaning new of modern form of" , "Prefix donating new" , "New (suffix)" , "Hero of The Matrix films; new (prefix)" .)