The most common and most likely answer to this crossword clue is the 6 letter word FLAMES
I've seen this crossword clue in Financial Times
F
L
A
M
E
S
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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 FLAMES mean?
FLAMES noun- The visible part of fire; a stream of burning vapour or gas, emitting light and heat.
- A romantic partner or lover in a usually short-lived but passionate affair.
- Intentionally insulting criticism or remark meant to incite anger.
- A brilliant reddish orange-gold fiery colour.
- The contrasting light and dark figure seen in wood used for stringed instrument making; the curl.
- Burning zeal, passion, imagination, excitement, or anger.
- To produce flames; to burn with a flame or blaze.
- To burst forth like flame; to break out in violence of passion; to be kindled with zeal or ardour.
- To post a destructively critical or abusive message (to somebody).