Deviates - or kills! (5,3)

I believe the answer is:

turns off

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

This might be a double definition.

'deviates' is the first definition.
The definition and answer can be both to do with motion as well as being verbs in their -s form.
Maybe they are linked in a way I don't understand?

'kills' is the second definition.
The definition and answer can be both to do with contact as well as being verbs in their -s form.
Perhaps they are linked in a way I don't understand?

'or' acts as a link.

Can you help me to learn more?

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.