Crossword Genius

Compact weapons sent from the east (4)

Ross

I believe the answer is:

snug

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

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for snug that I've seen before include "Cosy and comfortable" , "Comfortable -- small secluded room" , "Comfortabel with guns" , "Close-fitting and cosy" , "joiner" .)

I've seen this clue in The Sunday Times and The Times.
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