The most common and most likely answer to this crossword clue is the 5 plus 5 letter word CLOSE RANGE
I've seen this crossword clue in Financial Times
C
L
O
S
E
R
A
N
G
E
Buddy explains!
The straight part
We know that "seeing eye to eye" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case seeing eye to eye = close range.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 CLOSE RANGE mean?
CLOSE RANGE adjective- Capable of operating at a short distance.
- Hit, shot, or taken from nearby the target.