A few are a bit soft on me! (4)
I believe the answer is:
some
'a few' is the definition.
(I've seen this before)
'are a bit soft on me' is the wordplay.
'are a bit' suggests taking the first letters (I've seen 'a bit of' mean this).
The first letters of 'soft on' is 'so'.
'so'+'me'='SOME'
(Other definitions for some that I've seen before include "A little; not a little" , "Hard work" , "An unspecified quantity, not all" , "certain" , "An undetermined number" .)