The most common and most likely answer to this crossword clue is the 7 letter word DISCERN
I've seen this crossword clue in The Daily Telegraph
D
I
S
C
E
R
N
More clues leading to the result DISCERN
- Rescind newly-issued notice
- Pick out loose cinders
- See and record short-tailed eagle
- Pick out record, Queen number
- Rescind incorrect notice
- Recognise research group after review of small papers
- Notice director is with nuclear researchers
- Make out with promiscuous ‘Cinders’
- Make out with Cockney girl after record comes to an end
- Show contempt for big research organisation in notice
Buddy explains!

The straight part
We know that "Notice" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case notice = discern.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 DISCERN mean?
DISCERN verb- To detect with the senses, especially with the eyes.
- To perceive, recognize, or comprehend with the mind; to descry.
- To distinguish something as being different from something else; to differentiate.
- To perceive differences.