Nothing is returned wrapped in paper and stone (5)
I believe the answer is:
flint
'stone' is the definition.
(thesaurus)
'nothing is returned wrapped in paper' is the wordplay.
'nothing' becomes 'nil' ('nil' can be a synonym of 'nothing'**).
'is returned' is a reversal indicator.
'wrapped in' indicates putting letters inside.
'paper' becomes 'ft'.
'nil' backwards is 'lin'.
'lin' put inside 'ft' is 'FLINT'.
'and' is the link.
(Other definitions for flint that I've seen before include "Welsh county" , "Sparky mineral" , "Hard kind of stone -- Welsh town on the Dee estuary" , "Rock found in chalk" , "Hard grey rock" .)