Time runs out – it's the end of the line (8)
I believe the answer is:
terminus
'end of the line' is the definition.
(I've seen this in another clue)
'time runs out' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'time'+'runs'='timeruns'
'timeruns' anagrammed gives 'TERMINUS'.
'aeur it's the' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for terminus that I've seen before include "boundary marker" , "End of the line, bus or train" , "final point" , "Transport depot" , "Victoria, perhaps" .)