Digital worker (4)
I believe the answer is:
hand
'worker' is the definition.
(I know that hand is a type of laborer)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for hand that I've seen before include "Help < and applause" , "Hired worker" , "Cards dealt to player" , "Worker; body part" , "audience response?" .)