The most common and most likely answer to this crossword clue is the 8 letter word OPERATOR
I've seen this crossword clue in The Daily Telegraph
O
P
E
R
A
T
O
R
More clues leading to the result OPERATOR
- Machinist reviewing a report on outworkers, primarily
- Glyndebourne company’s trip putting off posh conductor?
- Travelling performances of Puccini, say, not for everyone? That could be a plus
- Say, Bocelli’s concerts on road out of Uruguay? He brings people together
- Work on stage “flipping twaddle” ? a plus or a minus?
- Norma maybe a fell runner
- Person running a business exercise welcomed by speaker
- Mechanic over each area covering rising rust
- A report doctored in support of old surgeon, perhaps?
- I connect, – perhaps
Buddy explains!

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 OPERATOR mean?
OPERATOR noun- One who operates.
- A telecommunications facilitator whose job is to establish temporary network connections.
- A function or other mapping that carries variables defined on a domain into another variable or set of variables in a defined range.
- The game of Chinese whispers.
- A person who is adept at making deals or getting results, especially one who uses questionable methods.
- A member of a military special operations unit.
- The administrator of a channel or network on IRC.
- A symbol that represents a construct in a programming language and differs from a normal function in its syntax.
- A kind of expression that enters into an a-bar movement dependency and is said to bind a variable.