The most common and most likely answer to this crossword clue is the 4 letter word CHAV
I've seen this crossword clue in Independent
C
H
A
V
More clues leading to the result CHAV
- Lout beginning to cause mayhem when officer leaves
- One with more money than taste? Here’s chapter and verse about one
- Tasteless individual starts to collect hideous Arabian vases
- Lout in church with a bible?
- Vulgar youth listening to TV?
- Rich and average — words that encompass tasteless person
- Essex Man from Harwich, a vulgarian
Buddy explains!

The straight part
We know that "Lout" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case lout = chav.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 CHAV mean?
CHAV noun- A working-class youth, especially one associated with aggression, poor education, and a perceived "common" taste in clothing and lifestyle.