Cryptic crossword clue
Uncertain weather? Something for the head mostly packed 5

The most common and most likely answer to this crossword clue is the 5 letter word SHAKY

S
H
A
K
Y

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The straight part
We know that "Uncertain" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case uncertain = shaky.
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 SHAKY mean?

SHAKY adjective
  1. Shaking or trembling.
  2. Nervous, anxious.
  3. (of wood) Full of shakes or cracks; cracked.
  4. Easily shaken; tottering; unsound.
  5. Wavering; undecided.

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