Picked companion with a broken nose (6)
I believe the answer is:
chosen
'picked' is the definition.
(I've seen this in another clue)
'companion with a broken nose' is the wordplay.
'companion' becomes 'ch' (Companion of Honour).
'with' is a charade indicator (letters next to each other).
'a broken' is an anagram indicator.
'nose' anagrammed gives 'osen'.
'ch'+'osen'='CHOSEN'
(Other definitions for chosen that I've seen before include "Select" , "part of Asia once" , "Selected, picked" , "Selected, preferred" , "Elected, picked" .)