Bussed -- only just made contact (6)
I believe the answer is:
kissed
This clue is a double definition.
'bussed' is the first definition.
(buss can mean to kiss)
'only just made contact' is the second definition.
(kiss can mean to lightly brush against)
(Other definitions for kissed that I've seen before include "Touched with lips" , "Bussed" , "Osculated" , "Touched lightly" , "slightly touched" .)