Executive Officer adopts trick used by diminutive penny-pincher to cut costs (9)
I believe the answer is:
economise
'cut costs' is the definition.
(both can mean to save money)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for economise that I've seen before include "save?" , "cut services" , "budget" , "Scrimp" , "make cuts" .)