The most common and most likely answer to this crossword clue is the 4 letter word ROIL
R
O
I
L
More clues leading to the result ROIL
- Member of Queen’s family said to be agitated
- Stir recipe over something to cook in
- Prince perhaps said to get turbulent
- It’s right for a prince, as you may say, to be boisterous
- Upset Rottweiler is disheartened after tail is severely docked
- Trio will evenly make it muddy
- Sounds like one of the Windsors getting upset
Buddy explains!

The straight part
We know that "Stir" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case stir = roil.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 ROIL mean?
ROIL verb- To render turbid by stirring up the dregs or sediment of.
- To annoy; to make someone angry.
- To bubble, seethe.
- To wander; to roam.
- To romp.