The most common and most likely answer to this crossword clue is the 8 letter word VISITORS
I've seen this crossword clue in The Sunday Telegraph
V
I
S
I
T
O
R
S
More clues leading to the result VISITORS
Buddy explains!

The straight part
We know that "away team" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case away team = visitors.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 VISITORS mean?
VISITORS noun- Someone who visits someone else; someone staying as a guest.
- Someone who pays a visit to a specific place or event; a sightseer or tourist.
- (usually in the plural) Someone, or a team, that is playing away from home.
- A person authorized to visit an institution to see that it is being managed properly.
- An extraterrestrial being on Earth for any reason.
- An object which lands or passes by Earth or its orbit.
- A head or overseer of an institution such as a college (in which case, equivalent to the university's chancellor) or cathedral or hospital, who resolves disputes, gives ceremonial speeches, etc.
- The object in the visitor pattern that performs an operation on the elements of a structure one by one.