The most common and most likely answer to this crossword clue is the 8 letter word FOREHEAD
I've seen this crossword clue in Financial Times
F
O
R
E
H
E
A
D
More clues leading to the result FOREHEAD
- Deaf hero’s wrinkled brow
- Warning about stray shot by chief that’s positioned between temples
- Warning notice pasted across half of ‘Hell Brow’
- Dome area surrounding temple
- Spooner's fallen female agent's facial feature
- US president accommodating English male, a bit of a mug
- Feature supporting European summit
Buddy explains!

The straight part
We know that "bit of a mug" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bit of a mug = forehead.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 FOREHEAD mean?
FOREHEAD noun- The part of the face above the eyebrows and below the hairline.
- Confidence; audacity
- The upper part of a mobile phone, above the screen.