Cryptic crossword clue
Everyone in performance on wobbly set is most superficial 10

The most common and most likely answer to this crossword clue is the 10 letter word SHALLOWEST

I've seen this crossword clue in The Guardian
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Buddy explains!

The straight part
We know that "most superficial" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case most superficial = shallowest.
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 SHALLOWEST mean?

SHALLOWEST adjective
  1. Having little depth; significantly less deep than wide.
  2. Extending not far downward.
  3. Concerned mainly with superficial matters.
  4. Lacking interest or substance.
  5. Not intellectually deep; not penetrating deeply; simple; not wise or knowing.
  6. Not deep in tone.
  7. Not far forward, close to the net.

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