Part of the establishment or society to which members are attached (5)
I believe the answer is:
torso
'part of the establishment or society to which members are attached' is the definition.
'torso' can be an answer for 'part' (torso is a kind of part). I'm unsure of the rest of the definition.
'part of the establishment or society to which' is the wordplay.
'part of' indicates the answer is hidden within the clue.
'TORSO' is hidden in the letters of 'establishment or society which'.
Can you help me to learn more?
(Other definitions for torso that I've seen before include "Trunk; headless, limbless body" , "Trunk, something unfinished" , "Trunk of human body" , "Main part of human body" , "Body without head, neck and limbs" .)