Bravery award (5)
(Other definitions for medal that I've seen before include "Award for achievement" , "Award for winning" , "Religious or commenorative metal piece" , "Sports award" , "Metal disc given as award" .)
'bravery award' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for george cross that I've seen before include "Highest UK gallantry award for civilians" , "Award not given for military heroism" , "Medal given to no soldier" , "Hardy character might get this" , "Award to the brave" .)