The most common and most likely answer to this crossword clue is the 6 letter word HEIFER
I've seen this crossword clue in The Guardian
H
E
I
F
E
R
More clues leading to the result HEIFER
- Successor stamped with iron?
- Young animal provided in here, surprisingly
- Young cow unhappy here, if kept inside
- Successor accepting reduced charge is a little lower
- Cow that chap provided to ruler
- Julius visits Playboy tycoon, having dumped new young female
- Fire shot after male bovine
- Livestock provided in here free
- Female, a little lower?
- Jersey perhaps on the small side?
Buddy explains!

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 HEIFER mean?
HEIFER noun- A young female cow, (particularly) one over one year old but which has not calved.
- A wife.
- A girl.
- A cow: a large, unattractive, unpleasant woman.