The most common and most likely answer to this crossword clue is the 2 plus 3 plus 4 plus 2 plus 3 plus 6 letter word ON THE SIDE OF THE ANGELS
I've seen this crossword clue in The Times
O
N
T
H
E
S
I
D
E
O
F
T
H
E
A
N
G
E
L
S
Buddy explains!
The straight part
We know that "Like good guys" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case like good guys = on the side of the angels.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.