The most common and most likely answer to this crossword clue is the 9 letter word EYESHADOW
I've seen this crossword clue in The Times
E
Y
E
S
H
A
D
O
W
More clues leading to the result EYESHADOW
- Some slap got by dog chasing our setter, we’ve heard
- Show a dye liberally applied to lid in essence — here?
- Cosmetic treatment of head’s restricting the old, old women
- Watch programme that includes commercial for a cosmetic
- Look at dog’s make-up
- What about agreed bill? It’s painful and cosmetic
- Look at trace of colour on lid
- Observe tail – it’s part of make-up
- Cosmetic application end of nose certainly experienced? That hurts!
- Watch programme that includes ad for make-up item
Buddy explains!

The straight part
We know that "Some slap" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case some slap = eyeshadow.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 EYESHADOW mean?
EYESHADOW noun- Makeup that is applied to the eyelids and below the eyes to give a darker complexion there.