Full of wisdom (7)
I believe the answer is:
sapient
'full of wisdom' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for sapient that I've seen before include "Having intelligence" , "Snipe at, being wise" , "of great wisdom" , "Snipe at (anag.)" , "Acutely insightful and wise" .)