Fringe stopped Edinburgh's last shed being repaired (7)
I believe the answer is:
emended
'being repaired' is the definition.
'fringe stopped edinburgh's last shed' is the wordplay.
I cannot really understand how this works, but
'stopped' could be 'ended' ('end' can be a synonym of 'stop') and 'ended' is found in the answer.
The remaining letters 'em' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for emended that I've seen before include "subjected to correction" , "Made changes to" , "Made corrections" , "Refined" , "Edited" .)