The most common and most likely answer to this crossword clue is the 6 letter word HEATHS
I've seen this crossword clue in The Daily Telegraph
H
E
A
T
H
S
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 HEATHS mean?
HEATHS noun- A tract of level uncultivated land with sandy soil and scrubby vegetation; heathland.
- Any small evergreen shrub of the family Ericaceae.
- Certain butterflies and moths