Crossword Genius

Strasbourg body with time to seal border for transient issues (8)


I believe the answer is:


I'm a little stuck... Click here to teach me more about this clue!

'strasbourg body' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.

'time to seal border for transient issues' is the wordplay.
I cannot really understand how this works, but
'time' could be 'era' (era is a kind of time) and 'era' is found in the answer.
'border' could be 'hem' (I've seen this before) and 'hem' is present in the answer.
This explanation may well be incorrect...

'with' acts as a link.

Can you help me to learn more?

(Other definitions for ephemera that I've seen before include "Mayfly - something short-lived" , "Things that exist for only a short time" , "They're soon over" , "Flyer" , "They won't last long" .)

I've seen this clue in The Independent.
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