The most common and most likely answer to this crossword clue is the 6 letter word TORRID
I've seen this crossword clue in The Guardian
T
O
R
R
I
D
More clues leading to the result TORRID
- Sweltering temperature not initially disagreeable
- Passionate little Dickensian changes ends
- Very hot temperature – nasty for Cockneys
- Cliff’s free to be passionate
- It’s very hot when it’s clear on the hill
- High point of rock, clear and passionate
- Fervent Conservative not entirely clear
- Passionate little heroine switching ends
- Hot gossip brought up about Oscar winner’s latest character
- Very hot and dry, on leaving Scottish loch
Buddy explains!

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 TORRID mean?
TORRID adjective- Very hot and dry.
- Full of intense emotions arising from sexual love; ardent and passionate.
- Full of difficulty.