The most common and most likely answer to this crossword clue is the 10 letter word DISMISSING
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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 DISMISSING mean?
DISMISSING verb- To discharge; to end the employment or service of.
- To order to leave.
- To dispel; to rid one’s mind of.
- To reject; to refuse to accept.
- To send or put away, to discard with disregard, contempt or disdain. (sometimes followed by as).
- To get a batsman out.
- To give someone a red card; to send off.