Easy targets (4)
I believe the answer is:
saps
'easy targets' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for saps that I've seen before include "Weakens, deprives of energy" , "Vital juices" , "Coshes" , "Enervates in spas" , "Depletes the the strength of fools" .)