Cryptic crossword clue
Oddly, Goldeneye starts with happiness 4

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

I've seen this crossword clue in Financial Times
G
L
E
E


Buddy explains!

The straight part
We know that "happiness" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case happiness = glee.
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 GLEE mean?

GLEE noun
  1. Joy; happiness great delight, especially from one's own good fortune or from another's misfortune.
  2. Music; minstrelsy; entertainment.
  3. An unaccompanied part song for three or more solo voices, not necessarily merry.
GLEE verb
  1. To sing a glee (unaccompanied part song).

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