Feeling less for the figure? (6)
I believe the answer is:
number
I believe this clue is a double definition.
'feeling less' is the first definition.
(more numb)
'the figure?' is the second definition.
(figure is a kind of number)
'for' is the link.
(Other definitions for number that I've seen before include "less sensitive" , "42, say" , "No longer" , "Comparatively torpid" , "1,2,3, for instance" .)