Possible Clues:

• Mender
• It's about that couple in hospital with handyman
• Worker whose job is to mend things
• One who makes good damage
• Mr. Fixit, e.g.
• One who mends/fixes
• Handyman, at times
• Mr. Fixit
• Old man in Ireland boarding posh car, one needed to get rid of faults?
• I'd make good sort of theatre publicist?