The most common and most likely answer to this crossword clue is the 11 letter word UNDEREXPOSE
I've seen this crossword clue in The Guardian
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More clues leading to the result UNDEREXPOSE
Buddy explains!
The straight part
We know that "Skimp on publicity" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case skimp on publicity = underexpose.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 UNDEREXPOSE mean?
UNDEREXPOSE verb- To take a photograph using too small an exposure
- To provide with insufficient publicity
- The condition when a photograph is darker than it should be because the film was not exposed to sufficient light either because the camera aperture was too small or the duration of light was too short.