It's good to own what one consumes with the secret service. (6)
I believe the answer is:
assets
'it's good' is the definition.
(thesaurus)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for assets that I've seen before include "(Person's) property" , "Property owned by person or business" , "Total value of possessions" , "valued possessions" , "Useful skills" .)