Averse to touching (7)
I believe the answer is:
against
I believe this clue is a double definition.
'averse to' is the first definition.
(to be averse to something is to be against it)
'touching' is the second definition.
(eg leaning against something)
(Other definitions for against that I've seen before include "Anti, touching" , "Facing" , "Not favouring" , "close by" , "Not supporting" .)