One of "The Few, The Proud"
I believe the answer is:
marine
'one of the few the proud' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for marine that I've seen before include "Concerning the sea" , "Concerned with the sea" , "Oceanic" , "Sea-soldier" , "Airmen (anag.)" .)