Emergency committee’s support led by army chief (5)

I believe the answer is:
cobra
'emergency committee's' is the definition.
(I've seen this before)
'support led by army chief' is the wordplay.
'support' becomes 'bra' (a support for the breasts).
'led by' is a charade indicator (letters next to each other) (some letters go in front of others).
'army chief' becomes 'co' (I can't explain this - if you can you should give a lot more credence to this answer).
'bra' after 'co' is 'COBRA'.
Can you help me to learn more?
(Other definitions for cobra that I've seen before include "crisis response group" , "a king, for example" , "Highly venomous hooded reptile" , "Poisonous snake" , "Deadly snake called King" .)
