Desperados holding area of ship and last of supplies (8)

I believe the answer is:
brigands
'desperados holding area' is the definition.
I can't tell whether this definition defines the answer.
'ship and last of supplies' is the wordplay.
'ship' becomes 'brig' (I've seen this before).
'last of' indicates one should take the final letters.
The final letter of 'supplies' is 's'.
'brig'+'and'+'s'='BRIGANDS'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for brigands that I've seen before include "Bandits" , "Armed thieves" , "Highway robbers" , "Pirates on land" .)
