Employee taking pen drive to save (7)
I believe the answer is:
husband
'save' is the definition.
(husbanding is a kind of saving)
'employee taking pen drive' is the wordplay.
'employee' becomes 'hand' (hand is a kind of employee).
'taking' means one lot of letters goes inside another.
'pen drive' becomes 'usb' (I can't explain this - if you can you should give a lot more credence to this answer).
'hand' placed around 'usb' is 'HUSBAND'.
'to' is the link.
Can you help me to learn more?
(Other definitions for husband that I've seen before include "manage thriftily" , "Consort" , "Partner in marriage" , "Man United" , "Male relative" .)