Peasant recycling one crust (6)
I believe the answer is:
rustic
'peasant' is the definition.
(thesaurus)
'recycling one crust' is the wordplay.
'recycling' indicates an anagram.
'one' becomes 'i' (Roman numeral).
'i'+'crust'='icrust'
'icrust' with letters rearranged gives 'RUSTIC'.
(Other definitions for rustic that I've seen before include "unrefined" , "Rural, countrified" , "Citrus (anag)" , "Simple and unsophisticated as in the country" , "Relating to the countryside" .)