Redolent of Cairo, unwrapping the rug smuggled in (8)
I believe the answer is:
aromatic
'redolent' is the definition.
(synonyms)
'of cairo unwrapping the rug smuggled in' is the wordplay.
'of' indicates an anagram (the answer comes from or 'of' the letters).
'unwrapping the rug' becomes 'mat' (I can't justify this - if you can you should believe this answer much more).
'smuggled in' means one lot of letters goes inside another.
'cairo' with letters rearranged gives 'aroic'.
'aroic' placed around 'mat' is 'AROMATIC'.
Can you help me to learn more?
(Other definitions for aromatic that I've seen before include "with distinctive odour" , "Pleasant smelling" , "Sweet-scented" , "Having fragrance (of herb)" , "Having a strong distinctive fragrance" .)