A device that has some current attraction (13)
I believe the answer is:
electromagnet
'a device' is the definition.
(electromagnet is a kind of device)
'some current attraction' is the wordplay.
'some current' becomes 'electro' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'attraction' becomes 'magnet' (I've seen this in another clue).
'electro'+'magnet'='ELECTROMAGNET'
'that has' is the link.
Can you help me to learn more?
(Other definitions for electromagnet that I've seen before include "Device attracting items when a current is passed through it" , "Powered attractor" , "Device using current to attract iron" , "attractive item" .)