The most common and most likely answer to this crossword clue is the 4 plus 4 letter word GENE POOL
I've seen this crossword clue in Financial Times
G
E
N
E
P
O
O
L
More clues leading to the result GENE POOL
- Setter welcoming public turning up old source of common heritage?
- Breeding stock? Wilder game?
- Information given on European game in stock source?
- Nurse fits in coil, say, rejecting all potential for breeding?
- Inheritance fund used to maintain family properties?
- Make-up collection in powder room writer, say, recalled
- Collective inheritance goes regularly on pole dancing
Buddy explains!
The straight part
We know that "stock source" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case stock source = gene pool.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.