Crossword Genius

Used for picking up military equipment (4)

Ross

I believe the answer is:

arms

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

'military equipment' is the definition.
(I've seen this before)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for arms that I've seen before include "See 11" , "See 12" , "you'll find in the gunroom" , "Appendages" , "Crest - guns" .)

I've seen this clue in The Globe and Mail.
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