The most common and most likely answer to this crossword clue is the 6 letter word EGGING
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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 EGGING mean?
EGGING verb- To throw eggs at.
- To dip in or coat with beaten egg.
- To distort a circular cross-section (as in a tube) to an elliptical or oval shape, either inadvertently or intentionally.
- To encourage, incite.
- The act of pelting with eggs.