Cryptic crossword clue
Foolish friar receiving fine, leading very loud mob 4-4

The most common and most likely answer to this crossword clue is the 4 plus 4 letter word RIFF RAFF

I've seen this crossword clue in The Daily Telegraph
R
I
F
F
R
A
F
F

Buddy explains!

The straight part
We know that "mob" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case mob = riff raff.
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 RIFF RAFF mean?

RIFF RAFF noun
  1. The rabble; crowds; the common people.
  2. Sweepings; refuse.

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