Cryptic crossword clue
Great waves from 22, we hear 4

The most common and most likely answer to this crossword clue is the 4 letter word SEAS

I've seen this crossword clue in The Daily Telegraph
S
E
A
S

Buddy explains!

The straight part
We know that "Great waves" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case great waves = seas.
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 SEAS mean?

SEAS noun
  1. A large body of salt water.
  2. A lake, especially if large or if salty or brackish.
  3. The swell of the sea; a single wave; billow.
  4. (in combination) Living or used in or on the sea; of, near, or like the sea.
  5. Anything resembling the vastness or turbulence of the sea.
  6. A constant flux of gluons splitting into quarks, which annihilate to produce further gluons.
  7. A large, dark plain of rock; a mare.
  8. A very large lake of liquid hydrocarbon.

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