The most common and most likely answer to this crossword clue is the 6 letter word SIENNA
S
I
E
N
N
A
More clues leading to the result SIENNA
- Queen is overthrown and might be burnt
- Pigment is seen when climbing over Sicilian location
- Old queen is turning brown
- Brown from swimming in sea around noon
- Girl is turning brown
- Girl is turning over to get brown
- After climb, old queen is a burnt colour
- Woman is returned to earth
- Insane preparation of pigment
- Colour of medicinal plant containing iodine
Buddy explains!

The straight part
We know that "‘brown pigment’" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case ‘brown pigment’ = sienna.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does SIENNA mean?
SIENNA noun- A form of clay containing iron and manganese.
- A pigment with a reddish-brown colour.
- A light reddish-brown colour.
- Having a reddish-brown colour.