The most common and most likely answer to this crossword clue is the 6 letter word KNOLLS
K
N
O
L
L
S
Buddy explains!
The straight part
We know that "rises" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rises = knolls.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 KNOLLS mean?
KNOLLS noun- A small mound or rounded hill.
- A knell.
- To ring (a bell) mournfully; to knell.
- To sound, like a bell; to knell.
- To arrange related objects in parallel or at 90 degree angles.