Two men around room from a bygone era (9)
I believe the answer is:
edwardian
'room from a bygone era' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'two men' is the wordplay.
'two men' can mean two substitutions for 'man'.
'man' becomes 'edward' (I've seen this before).
'man' becomes 'ian' (man's name).
'edward'+'ian'='EDWARDIAN'
'around' acts as a link.
Can you help me to learn more?
(Other definitions for edwardian that I've seen before include "Of the fashion mocked by Teddy boys" , "After Victoria" , "The age before WW1" , "From the years 1901 to 1910?" , "Early 20th-century" .)