Crossword Genius

Prepare to fire mate (4)

Ross

I believe the answer is:

cock

I believe this is a double definition.

'prepare to fire' is the first definition.
(as in cocking a gun)

'mate' is the second definition.
(I've seen this before)

(Other definitions for cock that I've seen before include "early bird" , "Male lobster; valve" , "Tilt (one's head to one's side)" , "Make gun ready" , "Adult male bird" .)

I've seen this clue in The Telegraph.
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