No-one stands back with particular sect (7)
I believe the answer is:
faction
'sect' is the definition.
(I know that sect can be written as faction)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for faction that I've seen before include "Act on if for a small group within a larger one" , "camp" , "Rebellious group" , "part of party" , "Clique that seeks power often through intrigue" .)