The most common and most likely answer to this crossword clue is the 4 letter word ROOF
I've seen this crossword clue in The Guardian
R
O
O
F
More clues leading to the result ROOF
- Cover and page missing from early edition
- Storey gets left out before raising top of house
- Australian native beginning to fix top of house
- Run out of 12
- Top that’s hit in anger
- Run out of shelter
- Part of one’s mouth that’s hit by person losing temper
- Demonstration tossing leader from top of building
- House’s top storey left out, contrarily
- House cover
Buddy explains!

The straight part
We know that "Top/that’s hit in anger" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case top/that’s hit in anger = roof.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 ROOF mean?
ROOF noun- The external covering at the top of a building.
- The top external level of a building.
- The upper part of a cavity.
- The surface or bed of rock immediately overlying a bed of coal or a flat vein.
- (rockclimbing) An overhanging rock wall
- To cover or furnish with a roof.
- To traverse buildings by walking or climbing across their roofs.
- To put into prison, to bird.
- To shelter as if under a roof.