Mandras repaired roof (7)
I believe the answer is:
mansard
'roof' is the definition.
(mansard is a kind of roof)
'mandras repaired' is the wordplay.
'repaired' is an anagram indicator.
'mandras' with letters rearranged gives 'MANSARD'.
(Other definitions for mansard that I've seen before include "Arms Dan oddly with a type of roof" , "Four-sided roof" , "Type of roof with different pitches" , "may be seen atop French house" .)