The most common and most likely answer to this crossword clue is the 6 letter word SETTLE
I've seen this crossword clue in The Times
S
E
T
T
L
E
More clues leading to the result SETTLE
Buddy explains!
The straight part
We know that "become calm" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case become calm = settle.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 SETTLE mean?
SETTLE verb- To conclude or resolve (something):
- To place or arrange in(to) a desired (especially: calm) state, or make final disposition of (something).
- To become calm, quiet, or orderly; to stop being agitated.
- To establish or become established in a steady position:
- To fix one's residence in a place; to establish a dwelling place, home, or colony. (Compare settle down.)
- To move (people) to (a land or territory), so as to colonize it; to cause (people) to take residence in (a place).
- To sink, or cause (something, or impurities within it) to sink down, especially so as to become clear or compact.
- To make a jointure for a spouse.
- (of an animal) To make or become pregnant.
- A seat of any kind.
- A long bench with a high back and arms, often with chest or storage space underneath.
- A place made lower than the rest; a wide step or platform lower than some other part. (Compare a depression.)