Algeria (anag) – ceremonial trappings (7)

I believe the answer is:

regalia

(Other definitions for regalia that I've seen before include "Emblems of royalty used at coronations" , "Array" , "Ceremonial robes" , "Insignia of royalty or office" , "Crown, sceptre etc used at a coronation" .)

I've seen this clue in The Guardian.

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