The most common and most likely answer to this crossword clue is the 7 letter word BONUSES
I've seen this crossword clue in The Daily Telegraph
B
O
N
U
S
E
S
Buddy explains!
The straight part
We know that "Advantages" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case advantages = bonuses.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 BONUSES mean?
BONUSES noun- Something extra that is good; an added benefit.
- An extra sum given as a premium, e.g. to an employee or to a shareholder.
- An addition to the player's score based on performance, e.g. for time remaining.
- One or more free throws awarded to a team when the opposing team has accumulated enough fouls.
- To pay a bonus, premium