Finery from Algeria wrecked (7)
I believe the answer is:
regalia
'finery' is the definition.
(synonyms)
'algeria wrecked' is the wordplay.
'wrecked' indicates an anagram.
'algeria' with letters rearranged gives 'REGALIA'.
'from' acts as a link.
(Other definitions for regalia that I've seen before include "Insignia of royalty or office" , "Paraphernalia indicative of high office" , "Finery" , "Ceremonial trimmings of high office" , "Orb and sceptre etc" .)