The most common and most likely answer to this crossword clue is the 8 letter word TROPICAL
I've seen this crossword clue in The Times
T
R
O
P
I
C
A
L
More clues leading to the result TROPICAL
- 'Very hot' and 'in the news' is about right
- Very hot current across river
- Extremely warm temperature damaged coral - good to intervene
- Current keeping river hot and humid
- Very hot and of current interest
- Hot and humid weather at last, in current setting
- Hot and humid current crossing river
- Very hot Romeo’s in local
- Very hot, newsworthy? About right
- River found in collapsed coal pit is very hot
Buddy explains!

The straight part
We know that "hot and humid" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case hot and humid = tropical.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 TROPICAL mean?
TROPICAL noun- A tropical plant.
- Of or pertaining to the tropics, the equatorial region between 23 degrees north and 23 degrees south.
- From or similar to a hot humid climate
- Pertaining to, involving, or of the nature of a trope or tropes; metaphorical, figurative.
- Pertaining to tropical geometry.