Crossword Genius

Neither limbless nor weaponless (5)

Ross

I believe the answer is:

armed

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'weaponless' is the definition.
Both the definition and answer are adjectives. Perhaps they are linked in a way I don't understand?

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for armed that I've seen before include "With a piece" , "Prepared and equipped for a confrontation" , "Having guns" , "prepared to shoot?" , "equipped for fighting" .)

I've seen this clue in The Irish News.
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