A touching emotion (7)
I believe the answer is:
feeling
I believe this clue is a double definition.
'a touching' is the first definition.
(feeling is a kind of touching)
'emotion' is the second definition.
(I've seen this before)
(Other definitions for feeling that I've seen before include "Emotion; opinion" , "Sense, emotion" , "Sympathy" , "Sensation" .)