The most common and most likely answer to this crossword clue is the 8 plus 6 letter word MARCHING ORDERS
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More clues leading to the result MARCHING ORDERS
- Feature with good system, being covered by damages for dismissal
- E.g. “Best foot forward”, given on dismissal.
- “Halt!” “Left wheel!” etc, with P45?
- Such a dismissal may be given by a drill-sergeant
- Charming and rich G-man among those getting the sack
- Cards left and right, for example
- Doctor harming records, resulting in dismissal
- One's told to go on issuing pink slips
Buddy explains!
The straight part
We know that "the sack" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case the sack = marching orders.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.