Yank shows courage (5)
I believe the answer is:
pluck
This clue is a double definition.
'yank' is the first definition.
(thesaurus)
'courage' is the second definition.
(I know that pluck is a type of fearlessness)
'shows' is the link.
(Other definitions for pluck that I've seen before include "Courage - play a harp" , "extract" , "Determined courage" , "Courage - defeather" , "Pull feathers off a bird before cooking" .)