The most common and most likely answer to this crossword clue is the 4 letter word BLUR
B
L
U
R
More clues leading to the result BLUR
- Obscure endless stuff on jacket?
- Smear second book excluded from promotional hype
- Vague shape in Monet's colour, reportedly?
- Make unclear, short publicity text
- Stuff written on back of book, mostly obscure
- Obscure promotion, dismissing second book
- Not finishing publisher’s book info that’s obscure
- In bathtub lurks a smudge
- Printed material endlessly creates muddle
- Obscure publisher’s promotion giving away half its books
Buddy explains!

The straight part
We know that "Obscure" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case obscure = blur.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 BLUR mean?
BLUR noun- A smear, smudge or blot
- Something that appears hazy or indistinct
- A moral stain or blot.
- To make indistinct or hazy, to obscure or dim.
- To smear, stain or smudge.
- To become indistinct.
- To cause imperfection of vision in; to dim; to darken.
- To sully; to stain; to blemish, as reputation.
- To transfer the input focus away from.
- In a state of doubt or confusion.