The most common and most likely answer to this crossword clue is the 9 letter word LIVESTOCK
I've seen this crossword clue in The Times
L
I
V
E
S
T
O
C
K
More clues leading to the result LIVESTOCK
- I have way to break security device for farm animals
- Install new shed with external bolt for farm animals
- Sheep and cows etc, as it happens, standard
- Cattle bolt eating supply, not new
- Animals I have brought to street secured by fastening device
- Strain following bad returns from domestic animals
- Cattle survives today, by break of day will be taken by heartless cook
- Ground ticks love cattle
Buddy explains!

The straight part
We know that "farm animals" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case farm animals = livestock.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 LIVESTOCK mean?
LIVESTOCK noun- Farm animals; animals domesticated for cultivation.