The most common and most likely answer to this crossword clue is the 12 letter word SCREWDRIVERS
I've seen this crossword clue in The Daily Telegraph
S
C
R
E
W
D
R
I
V
E
R
S
Buddy explains!
The straight part
We know that "tools" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case tools = screwdrivers.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 SCREWDRIVERS mean?
SCREWDRIVERS noun- A hand or machine tool which engages with the head of a screw and allows torque to be applied to turn the screw, thus driving it in or loosening it.
- A drink made of vodka and orange juice.