The most common and most likely answer to this crossword clue is the 7 letter word LOOK-IN
I've seen this crossword clue in Financial Times
L
O
O
K
-
I
N
More clues leading to the result LOOK-IN
- Can family together make a short visit?
- Chance of success in card game with court card no good
- Chance certainly to tuck into some meat
- John's relative is being included
- Short visit from John's relatives
- Call girl's gone after giving the once-over
- Chance of inclusion appearing to have an early end
- Check up on joint without approval
Buddy explains!

The straight part
We know that "Chance of success" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case chance of success = look-in.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 LOOK-IN mean?
LOOK-IN noun- A quick glance.
- A brief visit.
- A chance to participate, compete, or succeed.
- A quick short pass to a receiver running diagonally toward the center of the field.