The most common and most likely answer to this crossword clue is the 5 letter word GOFER
I've seen this crossword clue in The Daily Telegraph
G
O
F
E
R
More clues leading to the result GOFER
- Servant left abandoned by someone playing game
- Energetic person engaging female assistant for menial tasks
- One running errands for Chinese game umpire who’s retired
- Some running of errands for dogsbody
- Sportsperson missing line as runner
- Player’s line gone astray? Might it be the caddie?
- Servant tiring of errands to some extent?
- Dogsbody, fellow kept by active type
- I’m essential to running of errands
- Assistant rejects official scoring error
Buddy explains!

The straight part
We know that "Servant" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case servant = gofer.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 GOFER mean?
GOFER noun- A worker who runs errands; an errand boy.