Shrewdness in planning ahead (8)
I believe the answer is:
prudence
'shrewdness in planning ahead' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for prudence that I've seen before include "good management" , "Discretion, caution" , "Caution; wisdom" , "A woman < 's > circumspection" , "Quality of being cautious and sensible, and a girl's name" .)