Distort, as data (4)
I believe the answer is:
skew
'distort as data' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for skew that I've seen before include "Distorted, awry" , "Turn or twist around" , "Slant, bias" , "(Make) oblique, slanting" , "Place(d) obliquely" .)