The most common and most likely answer to this crossword clue is the 4 letter word KATE
I've seen this crossword clue in The Guardian
K
A
T
E
More clues leading to the result KATE
- Lass finishes off black tea: not nice
- Female swimmer’s first off
- Shrew decapitated fish
- She‘s eliminated artist from unarmed combat
- Informally, reformed character and king dined together
- Spouse of thematic Royal immersed in classwork at Eton
- Mistakenly take shrewish Shakespearean role
- Girl, one on thin ice away from the sides
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.