Working clothes not common among grandees abroad (9)
I believe the answer is:
dungarees
'common among grandees abroad' is the definition.
I can't tell whether this defines the answer.
'working clothes not' is the wordplay.
I cannot quite see how this works, but
'not' could be 'un' (I've seen this in other clues) and 'un' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for dungarees that I've seen before include "Overalls of cotton fabric" , "Hard-wearing work trousers with a bib" , "Worker's trousers with a bib" , "protection at work" , "Durable overalls" .)