Standing back without ceremonial robes (5)
I believe the answer is:
erect
'standing' is the definition.
(similar in meaning)
'back without ceremonial robes' is the wordplay.
'ERECT' is hidden backwards in amongst the letters.
But, I am not sure how this is indicated.
Can you help me to learn more?
(Other definitions for erect that I've seen before include "Build, put up" , "Found" , "Upright or vertical" , "Standing vertically" , "Not having a list" .)