Addresses part of macho message (5)
I believe the answer is:
homes
'addresses' is the definition.
(home is a kind of address)
'part of macho message' is the wordplay.
'part of' indicates the answer is hidden within the clue.
'HOMES' is hidden in the letters of 'macho message'.
(Other definitions for homes that I've seen before include "Dwelling-places" , "Dwellings, houses" , "Domiciles" , "Dwellings, abodes" , "accommodation" .)