"Told ya so!" (3)
(Another definition for hah that I've seen is " Expression of surprise (one letter short of a laugh)".)
'told ya so' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for see that I've seen before include "Observe - diocese" , "Visit" , "Realize" , "Chelmsford" , "Perceive mentally" .)