Stance taken β almost similar to unruly mob (6)
I believe the answer is:
akimbo
'stance' is the definition.
(I've seen this before)
'almost similar to unruly mob' is the wordplay.
'almost' means to remove the last letter (most of the word but not all of it).
'similar' becomes 'akin' (similar in meaning).
'to unruly' indicates an anagram.
'akin' with its last letter taken off is 'aki'.
'mob' anagrammed gives 'mbo'.
'aki'+'mbo'='AKIMBO'
'taken' is the link.
This may not be correct. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for akimbo that I've seen before include "display of arms" , "Posture with hands on hips" , "(Standing) with hand on hips" , "Stance with hands on hips" , "Hands on hips, elbows bent out" .)