Crossword Genius

Electrical current in South Korea caused fire (4)

Ross

I believe the answer is:

sack

I'm a little stuck... Click here to teach me more about this clue!

'fire' is the definition.
(dismiss someone from their job)

'electrical current in south korea caused' is the wordplay.
I cannot really understand how this works, but
'current' could be 'ac' (alternating current) and 'ac' is present in the answer.
'south' could be 's' (abbreviation) and 's' is found within the answer.
A single letter 'k' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for sack that I've seen before include "Fire - rifle" , "Dismiss; plunder; wine" , "boot" , "Dismiss (from a job)" , "Destruction" .)

I've seen this clue in the Sydney Morning Herald.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.