Arms displayed in a hostile way? (6)
I believe the answer is:
akimbo
'way?' is the definition.
(I have seen 'Way of standing' mean 'akimbo' so perhaps 'way' could also mean 'akimbo')
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for akimbo that I've seen before include "Stance with hands on hips" , "Ballet step" , "Hands-on-hips" , "With hands on hips and elbows turned outwards" , "(Standing) with hand on hips" .)