Crossword Genius

Genuine peacekeepers spread around one unoccupied garrison (9)

Ross

I believe the answer is:

unfeigned

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

'peacekeepers spread around one unoccupied garrison' is the wordplay.
'peacekeepers' becomes 'un'.
'spread around one unoccupied garrison' becomes 'feigned' (I can't explain this - if you can you should give a lot more credence to this answer).
'un'+'feigned'='UNFEIGNED'

Can you help me to learn more?

(Other definitions for unfeigned that I've seen before include "Sincerely felt or expressed" , "Genuine, not faked or put on" .)

I've seen this clue in the Sydney Morning Herald.
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