Ceremonial emblems Algeria reforms (7)
I believe the answer is:
regalia
'ceremonial emblems' is the definition.
(I've seen this before)
'algeria reforms' is the wordplay.
'reforms' indicates anagramming the letters.
'algeria' with letters rearranged gives 'REGALIA'.
(Other definitions for regalia that I've seen before include "Emblems of royalty used at coronations" , "Ceremonial emblems of high office" , "Insignia of royalty or office" , "Royal paraphernalia" , "ceremonial gear" .)