Cryptic crossword clue
With inquiring expression, insert key to reveal treasure 6

The most common and most likely answer to this crossword clue is the 6 letter word WEALTH

I've seen this crossword clue in The Guardian
W
E
A
L
T
H


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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 WEALTH mean?

WEALTH noun
  1. Riches; valuable material possessions.
  2. A great amount; an abundance or plenty.
  3. Prosperity; well-being; happiness.

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