Bond's boss finishes repairs (5)
I believe the answer is:
mends
'repairs' is the definition.
('mend' can be a synonym of 'repair')
'bond's boss finishes' is the wordplay.
'bond's boss' becomes 'm' (M is the head of MI6 in the James Bond series).
'finishes' becomes 'ends' ('end' can be a synonym of 'finish').
'm'+'ends'='MENDS'
(Other definitions for mends that I've seen before include "Repairs, darns" , "Fixes" .)