Crossword Genius

Start shooting household feature (4,4)

Ross

I believe the answer is:

open fire

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

This could be a double definition.

'start shooting' is the first definition.
(I've seen this before)

'household feature' is the second definition.
Although both the answer and definition are verbs in their base form, I cannot see how one could define the other.

Can you help me to learn more?

(Other definitions for open fire that I've seen before include "army command" , "Traditional room heater" , "traditional welcoming feature" , "Order for military" , "Initiate hostilities" .)

I've seen this clue in The Daily Express.
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