An employer's tactic (4)
I believe the answer is:
ploy
'tactic' is the definition.
(a ploy is a tactic or scheme)
'an employer's' is the wordplay.
'PLOY' is hidden within the letters.
But, I'm not sure how this is indicated.
Can you help me to learn more?
(Other definitions for ploy that I've seen before include "Clever tactic" , "Cunning plan" , "Ruse, stratagem" , "Tactical scheme" , "'Stratagem, gambit (4)'" .)