Electrical interference (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
static
'electrical interference' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for static that I've seen before include "Not active or moving" , "Stationary" , "Noise caused by electrical interferance" , "Lacking movement or action" , "irritation for the listener?" .)