Proffer untouchable some sensibility (10)
I believe the answer is:
tenderness
'some sensibility' is the definition.
The answer and definition can be both feelings as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'proffer untouchable' is the wordplay.
'proffer' becomes 'tender' (tendering is a kind of proffering).
'untouchable' becomes 'Ness' (Eliot Ness, 'Untouchable' in prohibition era in US).
'tender'+'ness'='TENDERNESS'
Can you help me to learn more?
(Other definitions for tenderness that I've seen before include "Heart" , "Gentle quality" , "sore?" , "Compassion" , "Gentleness, sensitivity" .)