The most common and most likely answer to this crossword clue is the 8 letter word PICKAXES
I've seen this crossword clue in The Daily Telegraph
P
I
C
K
A
X
E
S
More clues leading to the result PICKAXES
Buddy explains!

The straight part
We know that "Implements" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case implements = pickaxes.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 PICKAXES mean?
PICKAXES noun- A heavy iron tool with a wooden handle; one end of the head is pointed, the other has a chisel edge.
- To use a pickaxe.