Is it assumed to be a blazer? (7,6)
I believe the answer is:
smoking jacket
'blazer?' is the definition.
(thesaurus)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for smoking jacket that I've seen before include "Garment for puffers" , "piece of attire" , "Soft short coat for a man - Jack's gnome kit (anag)" .)