The most common and most likely answer to this crossword clue is the 6 letter word PECANS
I've seen this crossword clue in The Guardian
P
E
C
A
N
S
More clues leading to the result PECANS
Buddy explains!

The straight part
We know that "Nuts" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case nuts = pecans.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 PECANS mean?
PECANS noun- A deciduous tree, Carya illinoinensis, of the central and southern United States, having deeply furrowed bark, pinnately compound leaves, and edible nuts.
- A smooth, thin-shelled, edible oval nut of this tree.
- A half of the edible portion of the inside of this nut.