Maintenance on broken rapiers (7,7)
I believe the answer is:
running repairs
'rapiers' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'maintenance on broken' is the wordplay.
'maintenance' becomes 'repairs' (I've seen this in another clue).
'on' is a charade indicator (letters next to each other).
'broken' becomes 'running' (I am not sure about this - if you are sure you should believe this answer much more).
'repairs' put after 'running' is 'RUNNING REPAIRS'.
Can you help me to learn more?
(Other definitions for running repairs that I've seen before include "changing tyres, say" , "Fixes" , "Process of fixing operating machinery" , "fixing, by the way" .)