At the time, fears they're wrong (6)
I believe the answer is:
errors
'at the time fears' is the definition.
I can't judge whether this defines the answer.
'wrong' is the wordplay.
I cannot really understand how this works, but
'wrong' could be 'err' (to err is make an error) and 'err' is present in the answer.
The remaining letters 'ors' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'they're' is the link.
Can you help me to learn more?
(Other definitions for errors that I've seen before include "boobs" , "Mistakes and omissions" , "Gaffes" , "Subject of Shakespearean 6" , "Mistakes, slip-ups" .)