Sifted (7)
I believe the answer is:
riddled
'sifted' is the definition.
(riddling is a kind of sifting)
This is all the clue.
(Other definitions for riddled that I've seen before include "spoken obscurely" , "screened" , "didn't talk plainly" , "Pierced with many holes as by tommygun" , "Spread throughout" .)