The most common and most likely answer to this crossword clue is the 5 letter word BEIGE
I've seen this crossword clue in Financial Times
B
E
I
G
E
More clues leading to the result BEIGE
- Some climb Eiger to get a tan
- Oatmeal bread roll left out
- C of raging 4, after a dodgy run- out
- Sort of brown insect eats midge, missing odd bits
- Undyed woolstuff: rot has enveloped this in gown I acquire
- Yellowish-brown insect biting one on end of leg
- Live, that is, around midnight in buff
- Trouble after sending out the Pole and one of the Orientals for colour
- Yellowish-brown insect eats peeled figs
- 24d
Buddy explains!

The straight part
We know that "C" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case c = beige.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 BEIGE mean?
BEIGE noun- A slightly yellowish gray colour, as that of unbleached wool.
- Debeige; a kind of woollen or mixed dress goods.
- Having a slightly yellowish gray colour, as that of unbleached wool.
- Comfortably dull and unadventurous, in a way that suggests middle-class suburbia.