Barricades are supports for a royal residence, I say (9)
I believe the answer is:
palisades
'barricades' is the definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Perhaps you can see a link between them that I don't see?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for palisades that I've seen before include "Fences of stakes" , "Strong fences for defence" , "Fortifications of strong stakes in the ground" .)