The most common and most likely answer to this crossword clue is the 4 plus 3 letter word CAST OFF
C
A
S
T
O
F
F
More clues leading to the result CAST OFF
- Broken arm having mended, do some knitting?
- Who’s ejected from clubs like a Hooray Henry?
- Discarded actors start to object very loudly
- Discard players out of form
- Broken limb mended, went to sea
- Abandon what one might do after untying the painter
- Untie cats
- Leave bank having emptied ‘savings account’ and duck into greasy spoon
- Group of players on holiday get ready to go sailing
Buddy explains!

The straight part
We know that "Untie" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case untie = cast off.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 CAST OFF mean?
CAST OFF noun- Something that has been rejected or discarded; a reject.
- Discarded, rejected.