Bit about your setter being like a pussycat? (5)
I believe the answer is:
tamed
'like a pussycat?' is the definition.
'bit about your setter' is the wordplay.
'bit' becomes 'tad' (I've seen this before).
'about' is an insertion indicator.
'your setter' becomes 'me' (the crossword setter of this puzzle).
'tad' going around 'me' is 'TAMED'.
'being' acts as a link.
(Other definitions for tamed that I've seen before include "Of animals, domesticated" , "Reined" , "now behaving himself?" , "Domesticated or subdued" .)