The most common and most likely answer to this crossword clue is the 4 letter word HELP
I've seen this crossword clue in Independent
H
E
L
P
More clues leading to the result HELP
- Give assistance to male with record
- Chap's old record providing aid
- Some people have back support
- Assist some simple-hearted characters ascending
- Back in March, courthouse, school and shop all closing
- Puppy scratches head servant
- Beatles single and album
- Knowing about line in musical film
- Assist young dog to get a trim on top
- Beatles song sampled backwards in Purple Haze
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 = help.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 HELP mean?
HELP noun- Action given to provide assistance; aid.
- (usually uncountable) Something or someone which provides assistance with a task.
- Documentation provided with computer software, etc. and accessed using the computer.
- (usually uncountable) One or more people employed to help in the maintenance of a house or the operation of a farm or enterprise.
- Correction of deficits, as by psychological counseling or medication or social support or remedial training.
- To provide assistance to (someone or something).
- To assist (a person) in getting something, especially food or drink at table; used with to.
- To contribute in some way to.
- To provide assistance.
- To avoid; to prevent; to refrain from; to restrain (oneself). Usually used in nonassertive contexts with can.
- A cry of distress or an urgent request for assistance