Power source that goes with assault (7)
I believe the answer is:
battery
This clue might be a double definition.
'power source that goes' is the first definition.
'battery' can be an answer for 'power source' (I've seen this before). I'm unsure of the rest of the definition.
'assault' is the second definition.
(I know that battery is a type of assault)
'with' acts as a link.
Can you help me to learn more?
(Other definitions for battery that I've seen before include "crime" , "One's charged" , "Group of cells (or guns)" , "Power source; artillery unit" , "Device that converts chemical energy into electrical energy" .)