Ancient Jewish council had sinner stoned (9)
I believe the answer is:
sanhedrin
'ancient jewish council' is the definition.
'sanhedrin' can be an answer for 'council' (I've seen this before). I'm unsure of the 'ancient jewish' bit.
'had sinner stoned' is the wordplay.
'stoned' is an anagram indicator (can mean on drugs or drunk).
'had'+'sinner'='hadsinner'
'hadsinner' with letters rearranged gives 'SANHEDRIN'.
Can you help me to learn more?
(Other definitions for sanhedrin that I've seen before include "Ancient court" , "Jewish council" .)