Posh-sounding choice that setter has (6)
I believe the answer is:
plummy
'choice that setter has' is the definition.
'plummy' can be an answer for 'choice' (I've seen this before). I am not sure about the remainder of the definition.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for plummy that I've seen before include "Refined" , "(Of a voice) typically upper class" , "Of voice, sounding affectedly full - with stonefruit?" , "Rich and resonant" , "Choice" .)