Opposed to touching (7)
I believe the answer is:
against
I believe this clue is a triple definition!
'opposed' is the first definition.
(thesaurus)
'to' is the second definition.
(thesaurus)
'touching' is the third definition.
(thesaurus)
(Other definitions for against that I've seen before include "antagonistic" , "V" , "In conflict with" , "Versus - in contact with" , "Not favouring" .)