The most common and most likely answer to this crossword clue is the 8 letter word UNKNOWNS
I've seen this crossword clue in Financial Times
U
N
K
N
O
W
N
S
More clues leading to the result UNKNOWNS
Buddy explains!

The straight part
We know that "people with no reputation" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case people with no reputation = unknowns.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 UNKNOWNS mean?
UNKNOWNS noun- A variable (usually x, y or z) whose value is to be found.
- Any thing, place, or situation about which nothing is known; an unknown fact or piece of information.
- A person of no identity; a nonentity