The most common and most likely answer to this crossword clue is the 9 letter word RACEHORSE
I've seen this crossword clue in The Sunday Telegraph
R
A
C
E
H
O
R
S
E
More clues leading to the result RACEHORSE
- 1 across, say, or 1 across drunk by English
- Hurdler, perhaps, or chaser, unfortunately last of twelve
- Careers madly round house for something to put shirt on?
- Maybe sprinter; or chaser, jumping the last at Aintree?
- One in a stable condition reaches to grab oxygen cylinder, finally
- Chaser o’er ground?
- Nothing will stop new research – you can bet on it
- “Being in sport is exciting”
- Shergar once sadly no good after abduction
- People on heroin? You can bet on it
Buddy explains!
The straight part
We know that "animal bred for speed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case animal bred for speed = racehorse.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 RACEHORSE mean?
RACEHORSE noun- A horse that competes in races.