Cryptic crossword clue
Blow up big bird, female upset 4

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

I've seen this crossword clue in The Guardian
F
U
M
E

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The straight part
We know that "Blow up" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case blow up = fume.
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 FUME mean?

FUME noun
  1. A gas or vapour/vapor that is strong-smelling or dangerous to inhale.
  2. A material that has been vaporized from the solid or liquid state to the gas state and re-coalesced to the solid state.
  3. Rage or excitement which deprives the mind of self-control.
  4. Anything unsubstantial or airy; idle conceit; vain imagination.
  5. The incense of praise; inordinate flattery.
  6. A passionate person.
FUME verb
  1. To expose (something) to fumes; specifically, to expose wood, etc., to ammonia in order to produce dark tints.
  2. To apply or offer incense to.
  3. To emit fumes.
  4. To pass off in fumes or vapours.
  5. To express or feel great anger.
  6. To be as in a mist; to be dulled and stupefied.

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