The most common and most likely answer to this crossword clue is the 4 plus 4 letter word FISH FARM
I've seen this crossword clue in The Daily Telegraph
F
I
S
H
F
A
R
M
More clues leading to the result FISH FARM
- Breeding ground for schools
- Sports body holding quiet jolly in place of breeding?
- Commercial breeding ground for schools?
- Quiet footballers in company providing breeding ground for schools
- Female is hurt outside front of French establishment providing food
- Source of stock used in bouillabaisse, perhaps, as chef has regularly in company
- A floundering enterprise?
Buddy explains!

The straight part
We know that "breeding ground for schools" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case breeding ground for schools = fish farm.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.