We halt the production of riches (6)
I believe the answer is:
wealth
'riches' is the definition.
('wealth' can be a synonym of 'riches')
'we halt the production' is the wordplay.
'the production' is an anagram indicator.
'halt' anagrammed gives 'alth'.
'we'+'alth'='WEALTH'
'of' is the link.
(Other definitions for wealth that I've seen before include "Riches, worldly goods" , "'Riches, affluence (6)'" , "capital" , "Material worth" , "was common under Cromwell" .)