Sentence:  It all seemed - if one could have peeked in at him through one of his windows - as though this broken nosed man with the muscular arms and wrestler 's neck was merely the <WSD>caretaker</WSD> trying his hand at the boss 's work . 
Meaning of the word marked with <WSD> tags:  a custodian who is hired to take care of something (property or a person)