Some manifestation of armed power? (6)

I believe the answer is:
biceps
(Other definitions for biceps that I've seen before include "Upper-arm muscle" , "Arm workers" , "Flexor muscle" , "Contractor" , "Muscle that flexes the forearm" .)
I believe the answer is:
biceps
(Other definitions for biceps that I've seen before include "Upper-arm muscle" , "Arm workers" , "Flexor muscle" , "Contractor" , "Muscle that flexes the forearm" .)