So he repaired footwear (4)
I believe the answer is:
shoe
'footwear' is the definition.
(I know that shoe is a type of footwear)
'so he repaired' is the wordplay.
'repaired' indicates anagramming the letters.
'so'+'he'='sohe'
'sohe' anagrammed gives 'SHOE'.
(Other definitions for shoe that I've seen before include "Loafer, say" , "One of a pair to wear" , "Playing card box" , "Last product" , "9 maybe" .)