The arms position (6)
I believe the answer is:
akimbo
'the arms position' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for akimbo that I've seen before include "(Standing) with hand on hips" , "With hands on hip, elbows out" , "Posture with hands on hips" , "With hands on hips and elbows extending outward" , "Way of standing" .)