By the sound of it, gentleman supplies current pathway (7)
I believe the answer is:
circuit
'pathway' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for circuit that I've seen before include "Lap (of course)" , "Motor-racing track or path of electric current" , "Device for forming electronic connections" , "Once around the track" , "Motor racing track" .)