A bit of sorrow rather than anger (5)
I believe the answer is:
wrath
'anger' is the definition.
(wrath is a kind of anger)
'a bit of sorrow rather than' is the wordplay.
'a bit of' indicates a hidden word.
'WRATH' can be found hidden inside 'sorrow rather than'.
(Other definitions for wrath that I've seen before include "Fury" , "great heat?" , "Violent anger" , "head in Scotland" , "Failure to keep cool" .)