Brownish attire? (6)
I believe the answer is:
livery
'brownish attire?' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's a link between them I don't understand?
This is all the clue.
Can you help me to learn more?
(Other definitions for livery that I've seen before include "Uniform worn by menservants, chauffeurs, etc, often part of a retinue" , "group of servants" , "Distinctive uniform once worn by servants of posh people" , "Uniform - commercial care of horses" , "colours" .)