The most common and most likely answer to this crossword clue is the 6 letter word GRITTY
I've seen this crossword clue in Financial Times
G
R
I
T
T
Y
More clues leading to the result GRITTY
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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 GRITTY mean?
GRITTY adjective- Containing sand or grit; consisting of grit; caused by grit; full of hard particles.
- Spirited; resolute; unyielding.
- Intense and starkly realistic; depicting harsh reality, especially violence.