The most common and most likely answer to this crossword clue is the 7 letter word ENDURES
I've seen this crossword clue in The Guardian
E
N
D
U
R
E
S
Buddy explains!

The straight part
We know that "bears" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bears = endures.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 ENDURES mean?
ENDURES verb- To continue or carry on, despite obstacles or hardships; to persist.
- To tolerate or put up with something unpleasant.
- To last.
- To remain firm, as under trial or suffering; to suffer patiently or without yielding; to bear up under adversity; to hold out.
- To suffer patiently.
- To indurate.