Long-lasting repairs to inn urged (8)
I believe the answer is:
enduring
'long-lasting' is the definition.
(I've seen this before)
'repairs to inn urged' is the wordplay.
'repairs' indicates anagramming the letters (I've seen 'repair' mean this (letters are fixed or repaired)).
'inn'+'urged'='innurged'
'innurged' with letters rearranged gives 'ENDURING'.
(Other definitions for enduring that I've seen before include "Lasting a very long time, despite hardship (8)" , "Going through" , "Long-lasting" , "Permanent" , "Eternal" .)