The most common and most likely answer to this crossword clue is the 8 letter word KAYAKING
I've seen this crossword clue in The Daily Telegraph
K
A
Y
A
K
I
N
G
More clues leading to the result KAYAKING
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 KAYAKING mean?
KAYAKING verb- To use a kayak, to travel or race in a kayak.
- To traverse (a body of water) by kayak.
- A water sport involving racing, or doing tricks in, a kayak