The most common and most likely answer to this crossword clue is the 3 plus 5 letter word SKI POLES
S
K
I
P
O
L
E
S
Buddy explains!
The straight part
We know that "They go on the snow" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case they go on the snow = ski poles.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.